You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

I look at you, you look at me I raise my right, you raise your left. What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

What is the fastest way to double your money?

Count the number of triangles in the below picture?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Which letter of the alphabet has the most water?