cow is considered very holy and sacred. That it is considered higher than Brahmans.
According to Hinduism cow is considered very important. Even more important than brahmins.
They are considered the highest caste and therefore, closest to achieving moksha, which is the ultimate goal for Hindus. They are considered to have done many good things in past lives to allow them to have been born into that role. Because of these things, they are respected in society by other Hindus and even revered by some.
The four cast of Hindus are : Brahmans, kshatriyas , vaishyas and shudras.
Brahmans
Yes, Sanskrit is important language for Hindu. Many Hindus still practice sanskrit worldwide.
Yes everyone did during the vedic period. Although access to it was provided only to the brahmans.
They thought that all life was precious.
Hindus consider the River Ganges to be their sacred river.
Some Hindus consider Gautama Buddha to be reincarnation of Lord Vishnu.
Cows.
In groups of Hindus Lord Brahma is considered the creator of mankind. While Lord Shiva is considered the creator of Lord Brahma.
Yes They are, By & large Hindus are Very peaceful people.