Sending a man to Moon and finding Osama Bin Laden would have coasted the US government about the same amount of time and money 10 years and $100 billion.
The first guy to win "who wants to be millionaire" used none of his lifelines until the final question where he called his dad. During call he told his dad he didn't need any help on final question,But just wanted to let him know he was about to win $1,000,000(John Carpenter)