John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

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

What number should come in place of the question mark below?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Our product and our sum always give the same answer. Who are we?

Replace the question mark with the correct number below.

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Decode the below four famous ciphers:

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

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?