1. Largest bird   Peacock   Eagle   Ostrich   Albatross   Vulture   Hint Half-n-half Clue   2. Most common non-contagious disease   AIDS   Tooth decay   Typhoid   Cholera   Malaria   Half-n-half Clue   3. Heaviest bird of prey   Peregrine Falcon   Bald Eagle   Kori Bustard   Andean Condor   Great Bustard   Half-n-half Clue   4. Fastest land animal   Cheetah   Tiger   Antelope   Hare   Gazelle   Half-n-half Clue   5. Tallest dog (breed)   Dalmatian   Great Dane   Dobberman   Greyhound   Labrador   Half-n-half Clue   6. Tallest land animal   Elephant   Antelope   Giraffe   Polar bear   Rhinoceros   Half-n-half Clue   7. Most common blood group in humans   A +   AB -   O   B +   A -   Half-n-half Clue