By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Prove that twice of ten is the same as twice of eleven.

What is the next shape from answers A, B, C, and D figure?

When does a USA Potato change its nationality?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Can you write down eight eights so that they add up to one thousand?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

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?