Answer:
There are millions of me. I am very small but when moving fast I am deadly.
A kind of weather that comes your way, but add a "D" and it will run away
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.
What travels from house to house and is sometimes narrow and sometimes wide but always stays outside?
how many letters are there in the alphabet
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?