How many cups of water are in a 5 gallon bucket?
1 US gallon is 3,785412 L
1 US legal cup is 240 mL (or 0,24 L).
So 5 US gallons is equal to 78,86 cups.
How many cups of water for 6 cups rice?
2 Cups of uncooked rice, combined with 4 cups of water during cooking will yield 6 cups of cooked rice. http://wiki.answers.com/Q/How_many_cups_of_uncooked_rice_makes_two_cups_of_cooked_rice