Remove two matchsticks to make the below equation correct.

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

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?

Can you start the fire using two pieces of wood?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

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

Spot the cat in the picture below

How is a fly different from a mosquito?

How can you leave a room with two legs and return with six legs?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?