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.

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

Replace the question mark with the correct number below.

What is at the end of a rainbow?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Find the value of "?" in the ball picture Riddle below:

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?