Riddles (Week 3)

1) There were 3 goldfishes in a fish tank. When 1 of them died, the water started to get overflow. Why?
2) Imagine that you are trapped in a room without doors and windows. Four enemies are around you, pointing their guns at you, ready to shoot any time. How do you get out of the room alive? (The walls are bullet-proof and you don't know any way to protect yourself!）
3) Which animal is 100% female?
4) How do you clear a super messy and untidy room in less than a second?
5) What do you call a deer with no eyes?