Misc: What are the residents of the island of Lesbos called?

Questions

All the gold produced in the past ---------- years, if melted, could be compressed into a 50-foot cube.?

All the gold produced in the past five hundred years, if melted, could be compressed into a ---------- -foot cube.?

All totalled, the sunlight that strikes Earth at any given moment weighs as much as an ocean---------- .?

An ---------- is solid with nine faces.?

An enneahedron is ---------- with nine faces.?