1) The sitcom "Friends" is known for its iconic Central Perk coffee shop, where the main characters often gather.

2) Mountains are formed through various geological processes, including tectonic plate movements, volcanic activity, and erosion.

3) The Triple Crown in horse racing consists of three prestigious races: the Kentucky Derby, the Preakness Stakes, and the Belmont Stakes.

4) Hugh Jackman is an Australian actor, singer, and producer best known for his portrayal of Wolverine in the "X-Men" film series. He has also starred in musicals such as "Les Misérables" and "The Greatest Showman" and has received critical acclaim for his performances.