| Hint | Grand Challenge |
|---|
| Replace the middle letter: SONAR | |
| Use the first letter of each capital's country: Paris, London, Pretoria, New Delhi, Muscat, Kathmandu | |
| Element directly above silicon in the periodic table | |
| 1954 Best Picture winner: On the _____front | |
| Country singer Keith _____'s hits include: 'Sombody Like You', 'You'll Think of Me', and 'Days Go By' | |
| Complete the Mark Twain quote: 'The only way to keep your ______ is to eat what you don't want, drink what you don't like, and do what you'd rather not.' | |
| Rhymes with Edison and Jettison | |
| This organ is larger in humans than any other animal by percent of body weight. | |
| Unscramble the chemical element: retoning | |
| Popular ride at 4 Disney parks: Tower of _____ | |
| Complete the English word: _ y b _ _ _ p a _ e | |
| Genre of TV which has accounted for the top-rated show 7 of the last 10 years (2000-10) | |
| Word in common: Computer, Hygiene, Advertisement | |
| Name the longest operating US space shuttle | |
| Not anymore | |
Periodic Table 
The Nine Planets 
Digits of Pi
