Look at me one way and I weigh a whole lot; turn me around and you’ll see that I am not. What am I?

Answer: A ton.

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More What am I ?

Look at me. I can bring a smile to your face, a tear to your eye, or even a thought to your mind. But, I can't be seen. What am I?
Makeup for finger tips. What am I?
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My first can be found at the start of a letter. My second is the second of second. My third is the first letter. My fourth can be found by a fairway. My fifth is before the eye. My whole is a friend at the end. What am I?
My first half means container. Not a lot of people understand my language. What am I?
My first part compliments people. My second part makes things known. My third part hurts feelings. My fourth part holds a previous treasure. My fifth part is used when sharing fancy beverages. What am I?