Find the value of "?" in the ball picture Riddle below:

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Which letter of the alphabet has the most water?

You need to remove two matchsticks to make the below equation true. Can you do it ?

What does below rebus means ?

Can you count the number of quadrilaterals in the picture below?

Do you know who was buried in John's tomb?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

I am lying and I always lie. Tell me whether I am lying or telling the truth.