Move four matchsticks to the below square to form three squares?

A police officer was passing by when he saw a guy hiding. He walked up to him and genially asked, "What is your name?"

"Shut up!" the boy responded.

"Where are your manners?" asked the outraged police officer.

"Up that tree," said the boy discourteously, directing to a neighbouring tree.

You're looking for trouble, aren't you?" said the police officer.

"No, trouble is looking for me!" the boy answered solemnly.

Why is the boy behaving like this?

How do you go from 98 to 720 using just one letter?

What does this say?

XLR8

Be active and find the killer in the picture Riddle below.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

Can you identify the hidden rebus in the image below?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.