lucky mouse feii off a 1000-step stair and was not hurt.why?

lucky mouse feii off a 1000-step stair and was not hurt.why? 脑筋急转弯：Lucky Mouse fell off a 1000-step stair and was not hurt why? 问几道英语智力题!How many birthdays does the average man have?what resembles half a pie?Is there a Foutth of July in England?Lucky Mouse fell off a 1000-step stair and was not hurt.Why? Lucky Mouse fell off a 1000-step stair and was not hurt.Why?(请用英语回答)一个幸运的老鼠从1000层高楼掉下来为什么没死? mouse The mouse jumps off the door.（否定句） Feii in love at fist 脑筋急转弯：1.Why are dogs afraid to sunbathe 2.Where can a dog get another tail?30What animals can jump as high as a tree?4.Lucky mouse fell off a 1000-step stair,and was not hurt,why?5.Why do giaffes have long neck? Lucky lucky lucky Lucky lucky lucky Lucky lucky lucky lucky