On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

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?

Count the number of lines in the image below ?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What always comes into a house through the keyhole?

How many triangles are there on the puzzle below?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

How could a baby fall out of a twenty-story building onto the ground and live?