I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

How many times can you subtract the number two from the number fifty?

What is full of holes but still holds water?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

What Time Should the last watch show in the below figure?