What is the fastest way to double your money?

What can go through glass without breaking it?

How do you go from 98 to 720 using just one letter?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Why is it very easy to weigh a fish?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

what's the probability of getting a king or a queen from a pack of 52 cards?

What does this rebus riddle means ?