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?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

If eleven plus two equals one, what does nine plus five equal?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

When 99 is considered higher than 100?

What 5-letter word typed in all capital letters can be read the same upside down?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Buy me, smell me or deliver me, I do not change.

Who am I?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?