The centre of the third figure is empty. What digit should fit inside?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

The King of a distant land had heard that Birbal was one of the wisest men in the East and so desired to meet Birbal. He sent Birbal an invitation to visit his country.

In due course, Birbal arrived in the distant kingdom. When he entered the palace he was flabbergasted to find not one but six kings seated there. All looked alike. All were dressed in kingly robes. Who was the real king?

The very next moment he got his answer. Confidently, he approached the king and bowed to him.

How did Birbal know who was the real king?

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?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

When can we add 2 to 11 and get 1 as the correct answer?

What can you serve, but never eat?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

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?