There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Find the number of squares in the below picture

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Which wheel of car does not rotate when you turn your car right?

Rearrange the letters in "new door" to make one word.

Can you spot the hidden girl in the picture below?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

Take one out and scratch my head, I am now black but once was red. What am I?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain