A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

What number do you get when you multiply all of the numbers on a telephone's number pad?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Find the last number in the series below:

voN luJ yaM raM ---

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What brings you down but never up?