What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

How many times can you subtract the number 5 from 25?

What is the difference between a jeweller and a jailer?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

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 town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

Rearrange the letters in "new door" to make one word.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?