Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Count the number of balls in picture below:

What does this simple rebus mean?

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

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Can you count the number of squares in the given picture?

What occurs twice in a week, once in a year but never in a day?

Look at the picture and find out which square is not linked with any of the other squares.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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.