Problem: Which vitamin is produced by the body when it is exposed to sunlight?
Answer: d

Problem: Who is the only American to be honoured in Poets' Corner at Westminster Abbey?
Answer: henry wadsworth longfellow

Problem: Which London Underground line has a terminus at West Ruislip?
Answer: central

Problem: Nelson's tomb stands in St Paul's Cathedral but for whom was it originally made although this person never occupied it?
Answer:
cardinal wolsey