In the image below, can you find the value of an angle(y)

Identify the hidden meaning behind this picture?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

What is the next number in this series?

4,12,84,3612....

Can you find a five letter word that is left with only two letters if one is removed?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Can you find the 09 errors in the picture below?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?