How can a man go eight days without sleep?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

What does Alexander the Great and Winnie the Pooh have in common?

The answer I give is yes, but what I mean is no. What was the question?

In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10?

Prove that the below maths equation is true.

8 + 8 = 91

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What can go up a chimney down, but can't go down a chimney up?

This one is a popular quiz/puzzle. Can you find out the names of the websites depicted using the emojis in this picture?