A lil' variation on the duck, chick, bag of grain riddle

[Mike_Lowery]

can you solve the riddle (http://smartenupnas.com/2007/12/21/japanese-iq-test-how-smart-are-you/)?

Took me just under 12 minutes. Don't post the answer(s)!

[acousticlady]

I've seen this before so my time doesn't count. It goes a lot faster when you know the answer ;).