1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

What does this rebus means ?

PROG WORKRESS

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What can you see in the middle of March and April that you can never see in any other month?

Which number should replace the question mark?

I have Rs.50 and I spend it in the way as below.

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?