There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What does this below rebus puzzle mean?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What happened when the wheel was invented?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?