Based on the clue '3 enticing doors were your final choices as you tr...', what is the answer?

Based on the clue '3 decades after the tate labianca murders he seve...', what is the answer? Based on the clue '3 digit number for a gross', what is the answer? Based on the clue '3 dimensional figure with 8 plane faces', what is the answer? Based on the clue '3 disciplines rhythmic artistic trampoline', what is the answer? Based on the clue '3 feet of original bricks now almost 100 years old...', what is the answer? Based on the clue '3 flightless birds are native to the south pacific...', what is the answer? Based on the clue '3 foot long compsognathus meaning pretty jaw was t...', what is the answer? Based on the clue '3 foot long tusks inch a half thick skin are amo...', what is the answer?