Depends on the temperature of the room the table is in.
If the temperature is below 32 degrees F then nothing will happen to the ice cube.
If above 32 deg, the ice cube will melt. The higher above 32 the temperature is determines how long it will take to melt completely.
It will melt because the hot air will melt it.
It will begin to melt.
it takes about 3-4 mins
Magic
Your hand is much warmer than the table.
No - almost always not.
The cube is multiplied by 53 = 125.
20 minutes
Sugar dissolves faster.
yes
it will become water If you melt an ice cube it will melt
Surface area also decreases