question 1: 0:01
question 2: 0:50
question 3: 1:53
question 4: 2.22
question 5: 2:50
question 6: 3:51
question 7: 4:45
question 1: 0:01
question 2: 0:50
question 3: 1:53
question 4: 2.22
question 5: 2:50
question 6: 3:51
question 7: 4:45