1. Fastest growing plant   Banyan   Coconut   Ferns   Bamboo   Palm   Hint Half-n-half Clue   2. Bird with the largest egg   Geese   Turkey   Mute Swan   Albatross   Ostrich   Half-n-half Clue   3. Largest bird   Ostrich   Albatross   Peacock   Eagle   Vulture   Half-n-half Clue   4. Most common non-contagious disease   AIDS   Typhoid   Tooth decay   Malaria   Cholera   Half-n-half Clue   5. Largest land animal   Elephant   Hippopotamus   Giraffe   Lion   Rhinoceros   Half-n-half Clue   6. Largest mammal   Rhinoceros   Elephant   Giraffe   Hippopotamus   Blue Whale   Half-n-half Clue   7. Bird with the largest wing span   Eagle   Pelican   Albatross   Ostrich   Falcon   Half-n-half Clue