There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I add 5 to 9 and get 2. The answer is correct, so what am I?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Who has married many women but was never married?

What is the coolest letter in the alphabet?

What is the next number in this series?

4,12,84,3612....

Can you count the number of children in the picture below

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?