Can you find out the total number of triangles in the given figure?

Prove that twice of ten is the same as twice of eleven.

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

You can see three almost identical images below. Can you spot the odd one out from them?

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 find out which options fits best with the missing column?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Why are televisions attracted to people?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.