A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

What is red and smells like blue paint?

Before Mount Everest was discovered, what was the highest mountain in the world?

Can you identify if it's a murder or a suicide ?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

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?

How can one talk without saying a single word?

Our product and our sum always give the same answer. Who are we?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Why Wine Glass Stem is so long?