Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Solve the puzzle by telling what does below picture means.

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

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Find the number of squares in the below picture

What is so fragile that saying its name breaks it?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

What breaks yet never falls, and what falls yet never breaks?

I look at you, you look at me, I raise my right, you raise your left. What am I?

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