What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

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

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What jumps when it walks and sits when it stands?

Our product and our sum always give the same answer. Who are we?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

I have teeth but i don't bite. Who Am I ?

What has to be broken before you can use it?

Find the number of squares in the below picture