Brainteaser Riddle #10: Test Your Mental Sharpness

We love a good riddle - it gets your brain working and is the perfect midday distraction! We have collected a series of challengeing riddles to test your mental acuity! Test yourself and see if you can figure it out without peeking at the answer.

Could you work it out? Here is the answer: 

One. If he combines all his haystacks, they all become one big stack.

Test your friends and loved ones by SHARING this riddle now! And don't forget this is the final in a series so if you missed any of the others, go and check them out!