1. Largest island   Borneo   Greenland   Indonesia   Honshu   New Zealand   Hint Half-n-half Clue   2. Nearest star to the Earth (other than the Sun)   Dog Star   Great Bear   Proxima Centauri   Andromeda   Alpha Centauri   Half-n-half Clue   3. Largest lake   Lake Huron   Caspian Sea   Lake Superior   Aral Sea   Lake Victoria   Half-n-half Clue   4. Greatest waterfall (in terms of flow rate)   Yosemite Falls   Boyoma (formerly Stanley) Falls   Grande Falls   Khône Falls   Niagara Falls   Half-n-half Clue   5. Brightest star as seen from the Earth   Orion   Rigel Kentaurus   Dog Star (Sirius)   Eta Carinae   Betelgeux   Half-n-half Clue   6. Largest sea   Mediterranean Sea   Black Sea   Dead Sea   Red Sea   South China Sea   Half-n-half Clue   7. Deepest part of the ocean   Bermuda Triangle   Sea of Tranquility   Marianas Trench   Raasay Point   Java Trench   Half-n-half Clue