What is the next shape from answers A, B, C, and D figure?

Can you count the number of squares in the given picture?

What's the only room from which no one can enter or leave

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Count the number of balls in picture below:

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

If eleven plus two equals one, what does nine plus five equal?

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

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

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?