Question: Which surahs can we recite in Salat ul Witr?
Answer: You can recite any suurah's you like, but only after reciting Al-Faatihah in all 3 rak^ahs.
... and Allah knows best.
This weblog answers questions in fiqh based on the reliable answers of the salaf's 4 great schools of Islamic rules and laws, but emphasizes the Hanafi school.