What is the riddle which can be asked all day with a different correct answer each time.

Find the missing number in the image below.

How is a fly different from a mosquito?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

If 21x = 79x, what is the value of x?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Can you count the number of squares in the figure below?