A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What is the word or phrase below?
R | E | A | D

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

What demands an answer, but asks no questions

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.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M