How answer this question: How old are you?
Can I just say "I'm fourteen" e.g? Or I need say "I'm fourteen years old"?

Question

Answer

How can I answer this question?

It's fine to say 'I'm fourteen'. That is the most usual way of answering the question. You can say the long version if you want, but you don't need to.

Answer

"I'm fourteen" is fine in an informal and contemporary conversation.  The 2nd phrase would sound peculiar (to me) these days - but still in use :)

Answer

I am 14 year old ........is a right answer

Answer

Yes,You can say I'm fourteen 
And you can say fourteen it's also right

Don’t miss out on the opportunity to learn a language from the comfort of your own home. Browse our selection of experienced language tutors and enroll in your first lesson now!