1. Widest waterfall   Khône Falls   Boyoma Falls   Yosemite Falls   Niagara Falls   Grande Falls   Hint Half-n-half Clue   2. Place with highest annual rainfall   Sri Lanka   Zambia   Congo   Meghalaya, India   Cumbria, Britain   Half-n-half Clue   3. Largest sea   Mediterranean Sea   Black Sea   Dead Sea   South China Sea   Red Sea   Half-n-half Clue   4. Largest peninsula   India   China   Arabia   France   Russia   Half-n-half Clue   5. Longest river   Hwang Ho   Ob Irtysh   Mississippi-Missouri   Yangtze   Amazon   Half-n-half Clue   6. Coldest planet of our solar system   Pluto   Neptune   Venus   Saturn   Ganymede   Half-n-half Clue   7. Highest mountain   Kanchenjunga   Mount Rushmore   Mount Everest   K2   Andes   Half-n-half Clue