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

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What brings you down but never up?

Can you find a five letter word that is left with only two letters if one is removed?

What is always in front of you but can’t be seen?

If an electric train is travelling south, then which way is the smoke going?

How can a man go eight days without sleep?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?