Misc: How many olypmic medals has mark spitz won?

Questions

Every year, Mexico City sinks about ---------- inches.?

French speaking residents of Belgium are called---------- .?

If the Earth was smooth, the ocean would cover the entire surface to a depth of ---------- feet.?

If you told someone that they were one in a million, you'd be saying there were ---------- of them in China.?

If you travel across the Russia, you will cross ---------- time zones.?