This is a poorly set science question. A measuring cylinder measures to the nearest 1 ml, but a beaker measures to the nearest 10 ml. I believe the predicted answer is:
The volume of water decreased at room temperature, compared to the water at 60 degrees Celsius. But given the difference in accuracy between a beaker and measuring cylinder, this cannot be accurately measured. The question creator should have used: 100 ml of water at 60 degrees Celsius was measured using a plastic measuring cylinder and allowed to cool to room temperature. Then the predicted result of a decrease in the volume of water can quantified and measured.

1b is likely: At a lower temperature, water molecules move slower and become more closely packed (as the forces of attraction between water molecules increases), causing a decrease in volume.
1c. Mass is the amount of matter in a substance and is not changed by a change in temperature.