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

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

What is the coolest letter in the alphabet?

What is the difference between a jeweller and a jailer?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

The centre of the third figure is empty. What digit should fit inside?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

How many sides does a circle have?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?