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.

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Can you count the number of squares in the figure below?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

What does this rebus puzzle means ?

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

What does this mean?

CCCCCCC

Can you find the hidden animal in the picture below?

Before Mount Everest was discovered, what was the highest mountain in the world?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?