What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

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?

10+10 and 11+11 can give you the same answer.

Explain how?

Which is faster, Heat or Cold ? Explain.

Can you count the number of squares in the given picture?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

How many triangles can you count in the figure given?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?