Problem: US President Franklin Pierce introduced what to White House Christmas tradition in 1856?
Answer: christmas tree

Problem: What is the surname of Joe in the children's television series 'Joe 90'?
Answer: mcclaine

Problem: Which scientific instrument was invented by father and son Hans and Zacharias Jansen in the late 16th Century?
Answer: microscope

Problem: 'Dismaland' was the temporary theme park/exhibition of which famous 'anonymous' artist?
Answer:
banksy