Answer the questions based on the following information.
In Sri Chaitanya, Sunday is considered to be a holiday for all the employees. The week is said to start on Monday and end on Saturday. The employees can take 1 casual leave in the month on any of the working days. Six employees: Sumit, Sonam, Hritik, Haneef, Shiraz and Ranveer, took their casual leave on different days of April such that no two employees took off on the same date. 

Based on the information given below: determine the days of their casual offs and answer the questions given below.

1. No one took off on Monday.
2. Shiraz took off on Tuesday
3. Sonam was the last one among them to take off.
4. Except for Ranveer, everyone took off on the prime number date
5. Ranveer took off exactly two weeks after Haneef.
6. Shiraz and Hritik took off in the same week. Other than that, no two people took off in  the same week.
7. Hritik took off on 17^th April.
   Who took off before Hritik?