I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

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?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

People put me on the table and cut me but do not eat me. What am I?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

When it is alive we sing, when it is dead we clap our hands. What is it?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?