If you can win this challenge, you will be rich soon

Most people like to ask what kind of business they can be successful in when they start it. As the experienced people told them to select target customers and then find a kind of business that matches their needs, the newbies usually asked what kind of business can match all types of customers.

It's hard to answer because no business can serve all customers.

However, if you are the newbie and you insist on finding that business, you can try this challenge.

There are five people, including you. It’s mealtime, and you are assigned to be a cook. One person is a vegan; one eats only fish but not seafood; one avoids vegetables and freshwater food; one avoids all kinds of eggs; you avoid dairy; and all five avoid canned foods. 

If you can find a food that matches all five, then you will have a chance to be a successful businessman fast.