Problem: Vaseline is a genericized brandname for what sort of 'Jelly'?
Answer: petroleum

Problem: What caused the closure of the Panama Canal in December 2010, for the first time in 21 years?
Answer: flooding

Problem: "In the 1960's, which jazz pianist wrote the pieces, ""It's a Raggy Waltz"", ""Unsquare Dance"" and ""Blue Rondo a la Turk""?"
Answer: dave brubeck

Problem: How many roods make an acre?
Answer:
4