As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

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

Prove that twice of ten is the same as twice of eleven.

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Find the missing number in the sequence below:

What kind of band never plays music?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

10+10 and 11+11 can give you the same answer.

Explain how?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?