Loan related queries

●What are the things to consider before taking a 🏡 🚙 🎓 nd personal loan? 
●What are the most and least common types of loans? 
●How many types of lenders are there (legal and illegal) and how much interest they charge? 
●How to pay a 5-7 figure loan in a very short period of time(1-10 years) ? 
●How to qualify for a credit card? What should I look in a credit card? 
●Can an index fund be kept as collateral to borrow against the index fund?