30 Riddles Solved
It is seemingly infinite yet many would say they don't have enough of it. It is uninteresting on its own yet needed for everything else. It is omnipresent yet it has not much of a presence at all. What am I?
A man woke up and went to the toilet, but on the way, he saw a monster. Then, when he went to a store to buy clothes, the monster followed him. The monster even followed him while he was in his car. Finally, the man realized how to get rid of the monster; he then stumbled into bed. What was the monster he saw?