Identify a solution which contains solid as solute and liquid as solvent.

A solution of $50$g of solute 'X' is dissolved in $150$ g of 'Y' solvent boils at $357.27$ K. What is the molar mass of solute?
(Given $K_b$ and boiling point pure solvent is $2.77$ K kg/mol and $350.06$ K respectively.)

The partial pressure of a gas at $25^\circ$C is $0.18$ atm, calculate the concentration of the gas dissolved at the same temperature,
If $K_H$ is $0.15\ \text{mol dm}^{-3}\ \text{atm}^{-1}$

Vapour pressure of $\text{CCl}_4$ at $25^\circ$C is $143$ mm Hg. If $0.5$ g of a non-volatile solute is dissolved in $100 \text{ cm}^3$ of $\text{CCl}_4$. Find the vapour pressure of the solution.
(Density of $\text{CCl}_4 = 1.58 \text{ g}/\text{cm}^3$ and molecular weight of solute is $65$)