Misc: There are more ______ flamingos in the U.S, than real ones?

Questions

Carolyn Shoemaker has discovered 32 comets and approximately ---------- asteroids.?

---------- fly higher during the day than the night.?

Construction workers hard hats were first invented and used in the building of the ---------- Dam in 1933.?

Did you know you share a birthday with at least ---------- other people in the world??

Each year there is one ton of ---------- poured for each man, woman and child in the world.?