1. Place which has had the longest drought   Hint First letter clue   2. Highest waterfall   First letter clue   3. Smallest planet of our solar system   First letter clue   4. Smallest ocean in the world   First letter clue   5. Deepest lake   First letter clue   6. Widest waterfall   First letter clue   7. Brightest star as seen from the Earth   First letter clue