What is the fastest way to double your money?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

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

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Next Number in the Series,

5, 16, 49, 104, ?

There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?

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

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?