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

Guess the hidden movie name?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

What has many keys but can’t open a single lock?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Find the next number in the series.
1 10 24 43 67 ?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?