What product was introduced as a cure for urinatary problems

Question
Why would a train spotter want to see number 4468
Answer
The Mallard – record steam train

Question
MacDonald farm Sheep Cows Pigs Chicks Ducks Donkeys and what?
Answer
Turkeys

Question
What male human feature was taxed in Elizabethan times?
Answer
Beards

Question
What is Admiral Sir Miles Messervy usually known as
Answer
M (Bond films)