Problem: Which of the essential knots, used extensively in climbing, consits of two opposed half hitches?
Answer: clove hitch

Problem: The Ohm are a tribute band to which group?
Answer: who

Problem: In the UK, what is the name of the pedestrian crossing with traffic lights which only go green again when no more pedestrians are detected on the crossing?
Answer: puffin crossing

Problem: Ben Drew achieved a 2010 number one album fronting which band?
Answer:
plan b