I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

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

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

In the picture given below, can you find out which digit will take place of the question mark?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Find the number of squares in the below picture

I look at you, you look at me I raise my right, you raise your left. What am I?