英语智力题1）If you don't open the door,what animals can you ask f

英语智力题
1）If you don't open the door,what animals can you ask for help?_________________________________
2) who can stop any trucks with one hand?_________________
3)which is the medicine for your head in the English letters?It is_____________________
4)who caare the two brothers that live on opposite side of the road but never see each other?________________