Answer:
How tall is a spider?
What is round on both ends and hi in the middle?
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
What do you call a calculator that works instantly?
What do you call a classy fish?
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?