1. Widest waterfall   Boyoma Falls   Yosemite Falls   Niagara Falls   Grande Falls   Khône Falls   Hint Half-n-half Clue   2. Deepest part of the ocean   Marianas Trench   Sea of Tranquility   Raasay Point   Bermuda Triangle   Java Trench   Half-n-half Clue   3. Smallest ocean in the world   South China Sea   Atlantic Ocean   Indian Ocean   Pacific Ocean   Arctic Ocean   Half-n-half Clue   4. Largest satellite (natural) of our solar system   Sinope   Deimos   Moon   Ganymede   Phobos   Half-n-half Clue   5. Longest river   Hwang Ho   Amazon   Mississippi-Missouri   Yangtze   Ob Irtysh   Half-n-half Clue   6. Largest bay (in terms of shoreline length)   Hudson Bay   Cardigan Bay   Bay of Bengal   Cape of Good Hope   San Diego Bay   Half-n-half Clue   7. Largest continent   America   Europe   Africa   Asia   Australia   Half-n-half Clue