Recent puzzles under tag number puzzle

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What is the sum of all distinct prime factors of 3^3 + 4^7 + 5^5 + 6^4 + 7^6

posted Sep 3, 2018 by anonymous

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What is the next number in the series - 9; 86; 856; 8556; ??

posted Aug 30, 2018 by Balwinder

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Prime number 31 can be expressed in the form n^5 -1, with n=2. Are there other primes that can be expressed this way?

posted Aug 28, 2018 by anonymous

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The sum of each two adjacent blocks gives the number above. What number should replace the question mark?

posted Aug 27, 2018 by Sandeep Otari

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There exists a number, 102400...002401, where the 0's occur 2014 times. Is this number prime or composite?

posted Aug 25, 2018 by anonymous

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What is the seventh term of the following series: 4, 7, 12, 19, 28, ............

posted Aug 20, 2018 by Simranjeet Singh

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Next three consecutive positive integers (after 1,2,3) where sum of individual cubes is equal to a perfect square?

posted Aug 16, 2018 by anonymous

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Find the next number in the series ? 1; 10; 24; 43; 67; ?

posted Aug 13, 2018 by Kapil Kapoor

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Find the next three terms of this sequence : 128; 61; Y; 64; 63; S; 32; 65; N; 16; 67; J; 8; 69; G

posted Aug 13, 2018 by Rajni

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If 2+3=8, 3+7=27, 4+5=32, 5+8=60, 6+7=72 then 7+8=??

posted Aug 10, 2018 by Vikram Luthra

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What is the next number in the series: 3,240; 808; 200; 48; ?

posted Aug 9, 2018 by Varuna Magar

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How many numbers are there between 100 and 300 which either begin with or end with 2?

posted Aug 9, 2018 by anonymous

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If 4+5-2=33 and 10+12-5=119 then 6+8-3=?

posted Aug 6, 2018 by anonymous

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All possible four-digit numbers, with distinct digits using digits {1, 3, 4, 5, 6}. How many of them are divisible by 2?

posted Aug 3, 2018 by anonymous

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A little boy has exactly 210 pieces of candy. If he buys 10 more, he will have 220. He gives away 12. How many pieces...

posted Aug 1, 2018 by Hanifa Mammadov

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Find the logic and find the missing number in the table below.

posted Jul 26, 2018 by Vikram Luthra

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Number obtained by the sum of digits of 3^n where n>1, can we say this number is always divisible by 9 why or why not?

posted Jul 21, 2018 by anonymous

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Find the logic and then find the value of the missing number ‘X’.

posted Jul 19, 2018 by Kuldeep Apte

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How many numbers between 1 to 10^10 contain 1 in them?

posted Jul 18, 2018 by anonymous

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If, 2 = 8; 3 = 18; 4 = 32; 5 = 50 Then, 10 = ?

posted Jul 12, 2018 by Anshika Utadi

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Find the eighth term of the following series - 101; 102; 104; 107; 111;116; ............

posted Jul 9, 2018 by Ankur Athari

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Find the missing number in the sequecne- 8; 27; ?; 343; 1331

posted Jul 7, 2018 by Sandeep Bedi

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If Girl is coded as 48, what will be the code for boys?

posted Jul 7, 2018 by Sulove Malla

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Find next number in series 7, 16, 29, 46, ...

posted Jul 6, 2018 by Hanifa Mammadov

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Two digit number, when added together the answer is one half of the answer you get when digits are multiplied together?

posted Jul 6, 2018 by anonymous

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Complete the series 0, 2, 24, 252, 3120, ?

posted Jul 1, 2018 by Hanifa Mammadov

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Complete the series 2, 18, 84, 260, 630, ?

posted Jul 1, 2018 by Hanifa Mammadov

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Complete the series 1, 5, 13, 25, 41, ?

posted Jul 1, 2018 by Hanifa Mammadov

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Complete the series 7, 12, 22, 37, 57, ?

posted Jul 1, 2018 by Hanifa Mammadov

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Find the number in place of question mark

posted Jun 29, 2018 by Hanifa Mammadov

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Guess a number 1-10, multiply it by 2, now add with 54 and divide by 2. Lastly subtract the number you guessed 1-10...

posted Jun 29, 2018 by Hanifa Mammadov

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Given a positive integer N and two of its divisors. Difference between N and these two divisors is 270 and 280...

posted Jun 28, 2018 by anonymous

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Asking sum of two numbers one person said 23 and other 210. They were both wrong, as they correctly done the wrong...

posted Jun 28, 2018 by anonymous

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If 2+3+4=11, 3+4+5=15, 4+5+6=19, what is 7+8+9=?

posted Jun 27, 2018 by anonymous

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Split the number 17 into whole numbers, multiply these numbers together. What is the highest number that can be made ?

posted Jun 25, 2018 by anonymous

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Looking at the 3 "equations" below, what is the answer to the 4th one?

posted Jun 22, 2018 by Pankaj Deshmukh

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How many numbers divide exactly into 2000 ?

posted Jun 22, 2018 by anonymous

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What is the next number in the series : 10, 54, 450, 4014, ?

posted Jun 21, 2018 by Madhavi Latha

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Three different numbers written on cards are placed side by side. The first and the second add up to 15...

posted Jun 19, 2018 by anonymous

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How much would you need to be paid each calendar month if you were to be paid $1 million over 40 years?

posted Jun 18, 2018 by anonymous

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If 6 / 7 = 2; 3 / 9 = 7; 8 / 2 = 6 Then 4 / 5 = ?

posted Jun 18, 2018 by Anuradha Tabyal

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Find the sum of all whole numbers whose digits are strictly increasing?

posted Jun 16, 2018 by anonymous

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What is a dozen plus a score plus a gross?

posted Jun 16, 2018 by anonymous

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If 1+2=5, 2+5=12, and 3+6=21, what is 5+8=?

posted Jun 12, 2018 by anonymous

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What number is twice the sum of it’s digits?

posted Jun 12, 2018 by anonymous

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if (3, 4, 11) (8, 12, 63) (9, 6,64) then (12, 10, ?)

posted Jun 12, 2018 by anonymous

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What is the smallest number which is divide exactly by each of 1, 2, 3, 4, 5 and 6 ?

posted Jun 11, 2018 by anonymous

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Once you figure out the logic between the numbers, find the value of X & Y in the pyramid.

posted Jun 8, 2018 by Rahul Chandel

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How many times does the digit 9 appear in all the numbers from 1 to 1000?

posted Jun 5, 2018 by anonymous

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What is the next number in this sequence? 5; 6; 10; 17; 27; 40; 56; ?; ?

posted Jun 4, 2018 by Aastha Joshi