What's the difference between 只 and 才？ What's the difference between 只 and 才?  When should I use 只 and when 才?
Can you give me some examples please?
只 is equivalent to "only", a small amount. You would use it to say something like "I have only five bucks", "he's only two years old". 

才 is used if you have to have a minimum amount. Examples: "you must be this tall (or taller) to ride", "you have to wait three minutes (or longer)".