有几道英语题，麻烦解一下

1.You are waiting in a long line to get on a roller coaster to make the time go faster. You count the people ahead of you and find that you are the 38th in line. Then you look behind and feel pretty julky because you count that you are the 56th from the cnd. How many people are these in line.

2.Who works only one day in a year but never gets fired?

3.Which bus crossed the ocean?

4.Use three 4s and one 1 to form a maths with the mark of "＋，－，×，÷,( )".The results is 15. Can you work it out?

答案：

1. 56+37=93

2.圣诞老人

3.Columbus

4.（4-1/4）×4=15

1. 93

2. Santa Claus (圣诞老人)

3. Columbus (哥伦布) 注意其名以 bus 结尾

4. 14 + (4 ÷ 4) = 14 + 1 = 15

1.93

2.圣诞老人（在手机上看过这个答案）