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?

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?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

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 ?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Which English verb becomes past tense just by rearranging the letters?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

If 21x = 79x, what is the value of x?