Life is made up of small pleasures. Happiness is made up of those tiny successes. The big ones come too infrequently. And if you don't collect all these tiny successes, the big ones don't really mean anything.
By asking a novel question that you don't know the answer to, you discover whether you can formulate a way of finding the answer, and you stretch your own mind, and very often you learn something new.
For most people, we often marvel at the beauty of a sunrise or the magnificence of a full moon, but it is impossible to fathom the magnitude of the universe that surrounds us.