This riddle has been around for some time on internet platforms such as Instagram, Facebook, and WhatsApp, and many people still argue over what the answer might be, as there are many possibilities. The correct answer is The man makes an overall profit of $200. The man always sold the horse for a $100 profit every time. Assume that he had $1000 in the beginning. After buying the horse for $600 and then selling it off for $700, he would have: $1000 – $600 – $700 = $1100. After buying the horse for $800 and then selling it off for $900, he would have: $1100 – $800 + $900