An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Count the number of triangles in the picture below:

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

What English word has three consecutive double letters?

Can you identify the Oscar-winning movie from the rebus below?

I throw two dice simultaneously.

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

What kind of tree can you carry in your hand?