What is the next number in the series?

15 29 56 108 208 ?

A man dies of old age on his 25 birthday. How is this possible?

What is the longest word in the dictionary?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Can you count the number of triangles inside a triangle?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

I’m tall when I’m young, and I’m short when I’m old. What am I?