Free, Yet Priceless.

Riddle: I am free, yet priceless. You can't own me, but you can use me. You can't keep me, but you can spend me. Once you have lost me, you can never retrieve me. What am I?

Answer: Time.

Source: https://www.riddles.com/2919

I am free, yet priceless.
You can't own me, but you can use me.
You can't keep me, but you can spend me.
Once you have lost me, you can never retrieve me.
What am I? — Free, yet priceless. by 6085 v1.

Riddle: I am free, yet priceless.
You can't own me, but you can use me.
You can't keep me, but you can spend me.
Once you have lost me, you can never retrieve me.
What am I? Answer: Time. — by 6085 v2.