10+10 and 11+11 can give you the same answer.

Explain how?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Find out which of the given views in the picture is accurately the top view of the given pyramid.

What goes up but never comes down?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What has many teeth, but cannot bite?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Be active and find the killer in the picture Riddle below.

I have no life, but I can die. What am I?