1. Heaviest snake   Boa Constrictor   King Cobra   Viper   Anaconda   Reticulated Python   Hint Half-n-half Clue   2. Smallest bird   Kiwi   Kingfisher   Kittiwake   Hummingbird   Sparrow   Half-n-half Clue   3. Smallest bone in the human body   Ulna   Humerus   Tibia   Stirrup   Radius   Half-n-half Clue   4. Heaviest internal organ in the human body   Stomach   Large intestine   Heart   Pancreas   Liver   Half-n-half Clue   5. Fastest marine animal   Dolphin   Sperm Whale   Squid   Shark   Killer Whale   Half-n-half Clue   6. Longest bone in the human body   Back bone   Ulna   Humerus   Femur   Tibia   Half-n-half Clue   7. Bird with the largest wing span   Falcon   Ostrich   Albatross   Pelican   Eagle   Half-n-half Clue