What does this rebus riddle mean?

How can you make a TV, a bed, a dog, and a car liquid?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

What does the below image rebus riddle means ?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

Out of four images which one is the odd one out?

Why is Saturday stronger than Monday?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?