5 + 50, one is not a nickel, the other one is :)
A man has 20 coins, consisting of dimes (10 cents) and quarters (25 cents). If the dimes were quarters and the quarters were dimes, he would have 90 cents more than he has now. How many dimes and quarters does he have?
There are 10 bags full of coins out of which one bag is full of fake coins which we don’t know. But you do know that genuine coins weigh 01 gram, but fake weighs 1.1 grams. We have to identify that bag in minimum readings a digital weighing machine.
f I have less than $1 in coins, what is the largest amount of money I could have and not be able to give someone exactly 50p?
There are two people, A and B, each of whom is either a knight or a knave. A says, "At least one of us is a knave." What are A and B?
Details and Assumptions: A knight always tells the truth. A knave always lies.
