I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

What occurs twice in a week, once in a year but never in a day?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

What do you call a fish without an eye?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Can you count the number of lines in the below picture?