What is both possible and impossible at the same time?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Can you make four (4) nines (9) equal 100?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

Can you replace the question mark with the correct number in the below table sequence?

I can write cow in 13 letters.

Can You?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

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?)

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