Prove that the below maths equation is true.

8 + 8 = 91

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Can you replace the question mark with the correct number?

How is a fly different from a mosquito?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Why Aeroplane windows are round?

Can you Find and name the hidden bird in the picture below ?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.