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

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

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

Find out the number of circles in the given picture having Illusion

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

What is the centre of gravity?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?