Can you count the number of quadrilaterals in the picture below?

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

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Who has married many women but was never married?

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

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?