useless trivia: What Word Means: The Tibia?

Questions

The background radiation in ________ is twice that of the rest of Great Britain?

The southern most tip of Africa is not the 'Cape of Good Hope' but?

Due to gravitational effects, you weigh slightly less when the moon is directly?

The tower of London, during its lifetime has served many purposes, including a?

There is a village near the Somme in ______ which is simply called Y?