The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

When it's bad luck to meet a black cat?

Find the value of "?" in the ball picture Riddle below:

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

What happened when the wheel was invented?

What does this simple rebus mean?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Find the number of squares in the below-given picture.