Answer:
What's that 7 letter word with thousands of letters in it?
A standard dimension for sandwiches and rulers
They come in many varieties: Red, Black, Dead, and Caspian to name a few.
A squiggly line tells you when you've done it wrong
What is not a ball but yet a sphere, and holds all lands and people year after year?
When is it bad luck to see a black cat?