When you see article THE before uncountable noun then see if the sentence is said in a general sense...

Can- क्षमता बताने के लिए / अनुरोध करने लिए...

Prevention is better than cure. – इलाज से परहेज अच्छा |A drop of the...

Eitherसमूह में से एक चीज़ या व्यक्ति के बारे...

They are obtained by adding ‘self’ to the pronouns of singular number like- my, your, him, her, it...