Before exiting the high-stakes arena of 'Shark Tank,' Mark Cuban had invested $33 million, which earned him $35 million in cash returns and retained equity worth at least $250 million, per USA Today .

Even if you're not shaking up powders, the Ice Shaker is still a perfect gym companion. Our gym-going editor swears by this ...

Sir Jack Cohen was an English businessman who founded the Tesco supermarket chain, the UK's leading grocery retailer.