useless trivia: What Word Means: The Earthnut?

Questions

[pot luck] the eggs of the sturgeon fish are an expensive delicacy what are they called?

[pot luck] bamboo is which of the following grass, tree, fern?

[pot luck] at twelve noon gmt on london what time is it in aukland new zealand?

[pot luck] whixh expensive red spice is extracted from the crocus flower?

[pot luck] what is is the term for copying someone elses work?