Recent puzzles under tag number puzzle

+1 vote

Are there 5 different positive primes such that the sum of any three of them is a prime?

posted Mar 8, 2018 by anonymous

+1 vote

A number is multiplied by itself eight times,then divided by 65,536 to return to the original number.What is the number?

posted Mar 8, 2018 by Anamika

0 votes

Using all numbers from 1 to 10, put them into pairs, so that four pairs add up to 12 and the final pair adds up to 7?

posted Mar 7, 2018 by anonymous

0 votes

Find the next number in the series - 21; 32; 54; 87; 131; ?

posted Mar 6, 2018 by Sandeep Otari

+1 vote

Which 2 digit numbers become 27 bigger when the digits are reversed?

posted Mar 6, 2018 by anonymous

0 votes

Using all the numbers from 1 to 10, put them into pairs, so that pair adds to 6, 7, 9, 16 and 17?

posted Mar 5, 2018 by anonymous

0 votes

Replace the question mark with the correct number.

posted Mar 5, 2018 by Ujjwal Mehra

+3 votes

I am a prime number. Double of myself is equal to the square if myself. Which number am I ?

posted Mar 2, 2018 by Amarvansh

–1 vote

What comes next in the sequence: 3, 7, 13, 21, 31, ??

posted Mar 1, 2018 by Chahat Sharma

0 votes

What number gives the same result if you divide it by 2 or take 2 from it...

posted Mar 1, 2018 by anonymous

+1 vote

What is the value of (n!)^1/n where n tends to the infinity?

posted Feb 27, 2018 by anonymous

0 votes

How many different numbers can be made using only the digits 1, 2, 3, 4 and a + sign?

posted Feb 24, 2018 by anonymous

+2 votes

Is it possible to write 3^2016 + 4^2017 as the product of two numbers, both of which are over 2018^183?

posted Feb 20, 2018 by anonymous

+1 vote

Write numbers: 3, 4, 5, 6, 10, 12, 13, 15 in a order, such that numbers next to each other add to square numbers?

posted Feb 20, 2018 by anonymous

0 votes

Using 1, 2, 3, 4, 5 and 6 make two 3-digit numbers and multiply them together. What is biggest answer you can get?

posted Feb 16, 2018 by anonymous

0 votes

Look at the equation given in the picture and quickly solve it.

posted Feb 12, 2018 by Aarati Mahajan

0 votes

What is the value of (3)65 × (6)59 × (7)71 = ?

posted Feb 11, 2018 by Sachin Yadav

0 votes

Using all the digits from 1 to 5 once only, make two numbers which multiplied together give the largest number possible?

posted Feb 8, 2018 by anonymous

0 votes

Replace the question mark with the number of this simple math problem?

posted Feb 5, 2018 by Basabdatta Mukherjee

0 votes

If 2,4,5=3; 3,9,9=6; 4,12,8=5 and 5,10,8=6 then what is 6,18,7=?

posted Feb 2, 2018 by anonymous

0 votes

Find the missing number in the given table.

posted Feb 1, 2018 by Sandeep Otari

+1 vote

Find the next number in the series- 12, 20, 40, 72, 116, 172, ?

posted Jan 30, 2018 by Amarvansh

0 votes

Find the missing number in the box.

posted Jan 29, 2018 by Parampreet Kaur

+1 vote

Product of three consecutive numbers are 7980. Then the sum of these consecutive numbers would be?

posted Jan 29, 2018 by Brijesh Talwar

0 votes

Can you identify the logic behind the equation below and solve the puzzle by completing the equation?

posted Jan 24, 2018 by Aastha Joshi

0 votes

What number should replace the question mark in this sequence? 1 ; 5 ; 21 ; ? ; 341 ; 1365

posted Jan 23, 2018 by Nikita Sehgal

+1 vote

1 x 9 + 2 = , 12 x 9 + 3 = , 123 x 9 + 4 =... continue the pattern and see if you can predict answer before calculating?

posted Jan 21, 2018 by anonymous

0 votes

Two digit number, when is digits are added together answer is one third of answer when 2 digits are multiplied together?

posted Jan 21, 2018 by anonymous

+3 votes

Can you find a four digit number based on three clues below?

posted Jan 19, 2018 by Mridul

+1 vote

Find the missing number in the triangle.

posted Jan 18, 2018 by Vishal

0 votes

Is it possible to write integers from 1 to 10 in some order such that any two adjacent number add up to a prime number ?

posted Jan 18, 2018 by anonymous

+1 vote

I have 3 numbers and product of any 2 is equal to 3rd one. Is it true that 3 numbers must be either all 0's or all 1's?

posted Jan 16, 2018 by Salil Agrawal

+1 vote

If x1 and x2 are irrational numbers, can x1^x2 be a rational?

posted Jan 16, 2018 by Salil Agrawal

0 votes

If 8-22-5-22-13 equates to seven, and 7-4-12 makes two, how would you write ten?

posted Jan 16, 2018 by anonymous

+2 votes

find the 8th term of the series 02,13, 15, 27, 311, 513,......??

posted Jan 15, 2018 by anonymous

0 votes

Can you find four consecutive numbers which add up to 10?, 14?, 50?, 106? Is there a quick way to find them?

posted Jan 12, 2018 by anonymous

0 votes

What number should replace both question marks?

posted Jan 11, 2018 by Ankur Athari

+1 vote

Solve the below equation by replacing each letter by different digit.

posted Jan 11, 2018 by Harshita Dhaliwal

+1 vote

What is the original number on sachin's number plate?

posted Jan 10, 2018 by Sandeep Otari

+2 votes

Can you solve this tricky maths equation problem by replacing ? mark with correct number?

posted Jan 9, 2018 by Ujjwal Mehra

0 votes

A number can be multiplied by multiple of nine i.e 9 18 27 36 45 ....and the resulting number consist of only one digit.

posted Jan 5, 2018 by Tapesh Kulkarni

0 votes

If 2 x ABABAB = 9x BABABA then find what A and B stand for in these six-digit numbers?

posted Jan 5, 2018 by anonymous

0 votes

If, 5 + 3 – 2 = 48; 4 – 3 + 3 = 28. Then, 5 + 2 + 3 – 4 + 4 – 3 = ?

posted Jan 3, 2018 by Nikita Sehgal

+1 vote

Find The Next Number In The Sequence 30; 10; 15; 13; 0; 16; -15; ?

posted Jan 2, 2018 by Mishthy Mukherjee

0 votes

What is next number in pattern below 131; 517; 192; 123; ?

posted Jan 2, 2018 by Rahul Vaidya

+1 vote

Find three different whole numbers that add up to 10. How many different ways can this be done?

posted Jan 2, 2018 by anonymous

0 votes

How do we read the number **********?

posted Dec 30, 2017 by anonymous

0 votes

Three numbers add up to 14. Multiplied together they come to 84. Find the numbers?

posted Dec 28, 2017 by anonymous

+2 votes

I am a 4 digit number, my 1st digit is of no use as I still remain same without it. My 2nd and 3rd digits are mirror...

posted Dec 25, 2017 by anonymous

0 votes

The number 2^29 displays all digits from 0 to 9 except for one of them. Which is the missing digit?

posted Dec 22, 2017 by anonymous