Test Your Knowledge Tuesday!

The answer to last week's tester: His son.

This week’s challenge:
You have an eight-gallon tank of water, which is completely full, an empty five-gallon tank, and an empty three-gallon tank. Without throwing any water away, how could you put exactly four gallons in the eight-gallon tank and four gallons in the five-gallon tank?

Feel free to post answers in the comments section, or return next Tuesday to find out what the answer is. (Note: there might be 2 answers to this tough one….)

Your time...starts...NOW!

Of course, there'll be no answers given or even attempted cuz nobody is interested in having their brain challenged apparently.