You may enter, but you may not come in, I have space, but no room, I have keys, but open no lock. What am I?
Answer:- A Computer.
You may have many of me but never enough. After the last one arrives you will have no more. What am I?
Answer:- birthday
You need a key to receive an answer from me. The answer you'll find is straight from your mind. What is it?
Answer:- code
You put me on a table and cut me, but you don't eat me. What am I?
Answer:- A pack of cards.
You roll it or you buy it, People say you shouldn't try it, Because you may get a stroke, From inhaling all that smoke.
Answer:- cigarette
You row in one while you float.
Answer:- boat