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

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

I add 5 to 9 and get 2. The answer is correct, so what am I?

What does does this rebus picture means ?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

What question can you never answer yes to?

Can you count the number of triangles inside a triangle?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Different lights make me strange by changing me into different sizes. What am I?