| 2026-05-16 | Element between copper and gallium on the periodic table |
| 2026-02-13 | Alphabetically last nutrient in a multivitamin, often |
| 2025-01-21 | Brass component |
| 2023-10-24 | Next-to-last chemical element alphabetically |
| 2022-12-26 | 97.5% of a penny |
| 2020-09-23 | Immunity-boosting element |
| 2020-06-07 | Metal in galvanization |
| 2019-10-29 | About 97% of the modern penny |
| 2018-01-13 | 30, on a table |
| 2017-07-02 | Penny, mostly |
| 2017-04-23 | Portion of a penny |
| 2016-11-07 | Next-to-last element alphabetically |
| 2016-07-19 | Multivitamin ingredient |
| 2016-07-09 | More than a fraction of a cent |
| 2016-06-14 | Mineral contained in oysters |
| 2014-11-03 | Next-to-last chemical element alphabetically, before zirconium |
| 2014-11-02 | Battery element |
| 2014-08-25 | ___ oxide (beachgoer's protection) |
| 2014-05-29 | Brass section? |
| 2014-05-16 | Corrosion-preventing coating |
| 2013-08-21 | Component of brass |
| 2011-04-27 | 97.5% of a penny |
| 2011-04-01 | Major Peruvian export |
| 2010-07-21 | Brass component |
| 2010-04-23 | Calamine component |
| 2009-11-01 | 97.5% of a penny |
| 2009-07-13 | Next-to-last element alphabetically |
| 2008-11-12 | ___ oxide (sunscreen compound) |
| 2004-07-08 | Much of a penny |
| 2003-12-22 | Multivitamin additive |
| 2003-11-18 | Metal in galvanization |
| 2003-07-14 | Metal in some batteries |
| 2002-09-03 | Metal in pennies |
| 2002-05-30 | Shade of gray |
| 2002-05-28 | Brass component |
| 2002-03-11 | Metal in brass |
| 2001-11-29 | Kind of sulfide |
| 2001-06-25 | Brass = copper + ___ |
| 2001-02-09 | Brass component |
| 2001-02-08 | Plating material |
| 2000-11-28 | Galvanizing metal |
| 1999-01-20 | Like some plating |
| 1998-04-21 | Brass component |
| 1998-03-23 | Healthful mineral |
| 1997-07-23 | Element #30 |
| 1997-06-23 | Coating metal |
| 1997-06-17 | Over-the-counter cold remedy |
| 1997-04-30 | Vitamin additive |
| 1994-10-30 | Wurtzite ingredient |