英语脑筋急转弯（回答附上理由）1.Whatnumbershouldreplacethequestionmark?2414386387261916512.Whichpairofletterscomesinthissequence:on,et,wo,th,re,ef,ou...3.Sally,George,andFrankwerepickinguptheirfast-foodorder

Question

英语脑筋急转弯（回答附上理由）
1.What number should replace the question mark?
24 14 38
63 87 26 19 16 51
2.Which pair of letters comes in this sequence:on,et,wo,th,re,ef,ou...
3.Sally,George,and Frank were picking up their fast-food orders--a burger,a plate of fries,and a slice of pizza."Who ordered what?"asked the man at the counter.George said ,"I didn't order the pizza."The boy who ordered the fries said,"Oh,I thought you did,"That was all the man at the counter needed to know.Who got each order?
4.What is the question that has millions of correct answers?That is to say,everyone gives a different answer buy everyone is correct.

Answer 1

1)30(第一行前两个数相加等于38,第二行前两个数相加再减后面的数等于38,第三行前两个数相减加XX等于38,所以应该是8吧)
2)don’t know