Pretty near 2 cups. Watermelons are over 90% water by weight, and that figure includes the rind. Even allowing for void space, there's well over a cup and a half of water in two cups of watermelon.
2 cups of water
Approximately 1/2 of a cup.
92 % by weight of water melon is made of water and about 6% of it by sugars.
That is 0.25 cups
2 cups water to 1 cup uncooked rice a little salt and/or butter if you like Bring the water to a boil, pour in rice, turn down the heat and cover. Should take about 15 - 20 minutes.
2 cups
2 cups of sand ways more than 2 cups of water
1/8th of a cup
1 cup (note: while I don't know the exact value, this isn't even close. A pound of water is about 2 cups, and shortening floats on water. 2 cups would be a much better estimate. )
Three cups of water weighs approximately 709 grams or 24.9 ounces.
6 1/2 cups