unknown quantity in a sentence

Examples

1. The Fort Detrick Army facility houses unknown quantities of anthrax.
2. There have also been unknown quantity of modern catches exist on Taiwan as well.
3. Taylor, I don't know because he's still an unknown quantity.
4. Sprewell and Camby are the unknown quantities in this series.
5. Kerry is widely seen as stiff, Edwards as slick _ both as unknown quantities.
6. "They are sort of unknown quantities, " she said.
7. Bryan Burwell is coming over from the print side and is a largely unknown quantity.
8. Playoff-wise, he remains a bit of an unknown quantity.
9. MindSpring is pretty much an unknown quantity in California.
10. Bloomberg is still an unknown quantity for New Yorkers.