Tìm lỗi sai trong các câu sau

Tìm lỗi sai
1.   She is going to travel to Thailan for a little days.

2.   Which colour is it?

3.   I like going on car.

4.   Your health must be checked twice one year.

5.   Who is taller in our class?

6.   I need some water to drinking.