If a horse is completely healthy yes, it might live to be 40 years old, but that is a stretch. Biological factors, riding accidents, illnesses/diseases, etc. make it very hard for a horse to live for that many years. The average lifespan is 20-30 years old, depending as you said on the horse's health.
Not surprisingly, Mandarin Chinese is the most useful language for business after English, spoken by 845 million people in the worldâs second-largest economy, China. French (no. 2) and Arabic (no. 3) follow, with Spanish ranking fourth. Russian, Portuguese, Japanese, German, Italian, Korean, and Turkish followed.
Its the most common language in the world but not as a first language chinese is more common because there are so many people but more people speak english as a second language so yeah it is the language more people Can speak.