what word links these: bishop, rival, wheel?

Questions

In the 1970's, the Rhode Island Legislature in the US entertained a proposal that there be a $2 tax on every act of _____ ____ in the State?

Widows in equatorial ____ actually wear sackcloth and ashes when attending a funeral?

The British did not release the body of Napoleon Bonaparte to the French until _____ days after his death?

John Glenn, the American who first orbited the Earth, was showered with ______ tonnes of ticker tape when he got back?

American Red Indians used to name their children after the first thing they saw as they left their _____ subsequent to the birth. Hence such strange names as Sitting Bull and Running Water?