What number when divided in half becomes zero?

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.

How could a baby fall out of a twenty-story building onto the ground and live?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you solve the maths in the below-given picture equation?

Find the next number in the series below

21 32 54 87 131 ?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

John had a bag containing colourful marbles. The colours are red, green and blue. The total number of marbles he had in his bag was 60. There are 4 times as many red marbles as green marbles. 6 more blue marbles than green marbles. How many marbles of each colour did John have?

What does below rebus means ?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?