Does tnt delivery mean fast delivery?

it means when they are delivering it to your house, ect. it will most likely arrive today. Hope my answer helped you!

A company will make deliveries 24 hours a day or delivery will be made within 24 hours.

it means to go in their warehouse where everything is.

Not fast at all! 5-14 days

it depends. press on customer service then go on shipping and handling. there is a whole list depending on the money you pay. good luck!