Ya sure I will suggest you some interview question to prepare for CAPF exam so that you can have idea.

Here are some interview question you can prepare from it
What specific preparation did you do for the interview? Who was the chairman? Provide the list of questions asked in CAPF Interview. (and if possible, the answers as well). How was the overall interview experience? And any tips for future aspirants.
What do u know about shahid afridi ? why was he was recently in news ?
Why do u want to join CAPF ?
What is telengana issue ? what are specific problems of telengana ? give examples and few facts too ?
What are various child labor law ?
Ok leave it , tell me ways to curb child labor ?
What is diff bw naxalism and maoism ?
What are KYC norms ?
What is ozone layer and its significance ?
Where does it lies?
You are an engineer ? tell me why the level of engineering is so low in India ?
What is AICTE ?
What is preamble ?
Tell me text of preamble ?
asked me to recall those words .
You know the meaning of all these words ?
What is RPF ?
What is GRP ?
Then what is diff bw the two ?
Any more diff ?
Ok , your last question . tell us something unique about your home district / city ?
Smiles and says , I know this fact , tell us something unique ?
Tell me what’s famous about yellow stone park ?
How was interview: normal, stress, mixed? Did they ask any uncomfortable questions, if yes how did you answer it?