Answer:
What do you call a fish without an eye?
What do you call a calculator that works instantly?
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
What can be right but never wrong?
What is type of room has no windows, no furniture and nobody lives in it?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.