Which of the following elements has the lowest melting point?

The Chemical formula of Ammonium nitrate is ___________.

Muscles get tired when there is shortfall of ___________.

Carica papaya is the scientific name of ___________.

__________________ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.

A piece of paper is folded and punched as shown below. From the given figures, indicate how it will appear when opened.

If a mirror is placed on the line MN, then which is the right figure of the given image?

Introducing a boy a Ankit said," He is the son of daughter of my grandfather's son". How is that boy related to Ankit?