You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

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?

Can you count the number of matches in the picture below ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Which point will the car reach to go out?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

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?