useless trivia: What Word Means: Nerve - Pluck?

Questions

A cockroach can live several weeks with its _______ cut off - it dies from starvation?

Every time you lick a _____, you're consuming 1/10 of a calorie?

The average person has over ________ dreams a year?

One in every _____ Americans has appeared on television?

The average American/Canadian will eat about 11.9 pounds of _______ per year?