Boiling point of water

The boiling points of water is high because

Why is a delivery tube attached to the flask while determining the boiling points of water ?

On a thermometer, the freezing points of water is marked as 20^(@)C and the boiling points of water is marked as 150^(@)C . A temperature of 60^(@)C will be read on this thermometer as

The boiling point to water is more than that of ethyl alcohol. What does it singify.

Assertion : Phenol has lower boiling point then water Reason : Water forms more number of hydrogen bonds

The boiling point of heavy water is

The boiling point of pure water is ________ .^(@)C , at normal atmospheric pressure.