Misc: Who was reputedly the father of Cleopatra's first child?

Questions

What metal makes up most of earth's centre copper, gold or iron?

What percentage of your weight is water 30, 50 or 70 percent?

What shape is a crystal of table salt a cube, oval or sphere?

What southern U S state capital is said to have been named for the Western & Atlantic Railroad?

What travels faster than light a laser beam, sound or nothing?