| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Superman should know that this element, atomic no. 36, is one of the rarest gases in the Earth's atmosphere | krypton | $800 | DJ | SCIENCE STUFF | 2018-01-04 | #7669 | |
| This noble gas used in high-speed photography lamps takes its name from the Greek for "hidden" | krypton DD | $1,000 | J | SCIENCE "K"LASS | 2011-11-07 | #6241 | |
| Superman might be interested to know this rare gas, atomic number 36, is used in fluorescent lights | krypton | $100 | J | PHYSICAL SCIENCE | 1988-06-06 | #881 |