confusing connections!!

1.'X' - 1936, as a lotto-like game of chance; many theories about its origin, none satisfying; the most likely is 'X'! as an exclamation of sudden realization or surprise (attested from 1927). Uncertain connection to the slang word for "brandy" (1699); attested as "liquor" in Amer.Eng., 1861

2. 'Y' entered a segment of market mostly dominated by 'Z' with a product one of whose ads had 'a CBI inspector clarifying the difference between the criminal Zango and 'X''

3.'Y' features on the Forbes Global 2000 rankings for 2007 at position 1256. On 24th August 1910, the Company was incorporated as a Private Limited Company under the name, Imperial Tobacco Co. of IndiaLtd. The Company manufactured and distributed cigarettes and smoking tobaccos and speciality papers including cigarette tissue papers (Sole manufacturer in the country). Present activities include above mentioned and tobacco leaf processing, printing and packaging, hotels, food and exports.

4.'Z':In 1932 Herman W. Lay began a potato chip business in Tennessee.
Victoria Miller, the operator of the Highland ParkConfectionery, purchased a corn chip recipe, 19 retail accounts and a potato ricer for $100 from a local manufacturer in 1932. Doolin established a new corn chip business.
the two businesses later merged to become 'Z'. The company's current form is the result of a 1965 merger of 'Z' and the Pepsi-Cola Company, which resulted in the formation of PepsiCo, Inc.