12 possible answers to
Answers with 3 characters: ASP Answers with 5 characters: ADDER COBRA MAMBA KRAIT VIPER Answers with 6 characters: TAIPAN Answers with 8 characters: PITVIPER Answers with 9 characters: PUFFADDER KINGCOBRA Answers with 10 characters: COPPERHEAD Answers with 15 characters: WATERMOCCAPRIDE