Answer:
My first half means container. Not a lot of people understand my language. What am I?
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure, a matter of course. What am I?
I have a frame but no picture. I have poles but not standing up
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
I help you carry your books.
When someone uses this acronym, you know you've got to pick up the pace