Rabanne
The company with a white "r" inside a black "p" is likely "Pirelli," an Italian tire manufacturer. The logo features a stylized "P" with the "r" inside it. Pirelli is known for its high-performance tires used in motorsports and luxury vehicles.
Pinterest?
Durex
The company that has a red circle logo with a red R in it is RadioShack.
K-R is the logo of the company who made your ring.
In OPA on the floors of the duomo of Florence stands the P also for the R. And OPRA misses one E. It is the stemma of the "Opera del Duomo. This foundation was born together with the cathedral and, since 1296, it follows the works of everything concerning the church: projects, building, restoring and so on.The logo of this foundation is OPA, the contraction of the Latin word OPERA: the symbol P has a double value as R an P. In many place inside the Cathedral and outside you can see this logo".
The logo you're describing is associated with the brand "Reebok." The blue diamond shape with the letter "r" inside is a part of their branding, which has evolved over the years but often features geometric designs. Reebok, a well-known athletic footwear and apparel company, has used variations of this logo in its marketing and product designs.
The logo with a lowercase "f" inside a box refers to the Facebook logo.
reading
pepsi :P
Its a P
R+