Water is liquid due to

In which compound is the hydrogen bonding the strongest in its liquid phase?

Why is $H_2O$ a liquid and $H_2S$ a gas?

Hydrogen bonding plays a central role in the following phenomena:
$(A)$ Ice floats in water.
$(B)$ Higher Lewis basicity of primary amines than tertiary amines in aqueous solutions.
$(C)$ Formic acid is more acidic than acetic acid.
$(D)$ Dimerisation of acetic acid in benzene.

Which of the following compounds will have the maximum hydrogen bonding?

When two ice cubes are pressed over each other,they unite to form one block. Which of the following forces is responsible for holding them together?