At what temperature in $^\circ F$ is the density of water maximum?

What is the difference between $^oC$ and $^oF$ thermometer values for freezing and boiling points of water?

Mercury thermometers can be used to measure temperatures up to ........ $^oC$. (in $^oC$)

The melting point of ice and the boiling point of water are marked as $20^o X$ and $150^o X$ respectively on a thermometer. What will be the temperature of $60^o C$ on this scale?

$A$ constant volume gas thermometer shows pressure readings of $50 \, cm$ and $90 \, cm$ of mercury at $0^{\circ} C$ and $100^{\circ} C$ respectively. When the pressure reading is $60 \, cm$ of mercury,the temperature is ......... $^{\circ} C$.

If a thermometer reads the freezing point of water as $20^{\circ}C$ and the boiling point as $150^{\circ}C$,what will the thermometer read when the actual temperature is $60^{\circ}C$?