is there something on marlboro packages for free cigarettes, some type of number or something?

Answer 1

check out urban legend scroll about halfway down to read about the free cigarettes, it is just a legend

"Another printing rumor exists about a set of marks located under the bottom flap of the box. Alpha-numeric renderings such as "Wn-2" have been interpreted by some as proof of a secret promotion being run by the company which entitles the finder to free product, either one or two packs, depending on the numeral in the string. Another version states the valuable hidden marks are located on the cigarettes themselves, underneath the paper just above the filter, and that an all-letter or all-number find entitles the lucky paper-peeler to a free carton of cigs.

This tale is only wishful thinking. Though Marlboro has run a number of promotions requiring the accumulation of tokens found on its cigarette packs to later be exchanged for premiums (merchandise), it has yet to run a secret promotion, nor is it ever likely to."