Which river has its source in Tibet and enters India through Arunachal Pradesh?

Which of the following river doesn't flows through Arunachal Pradesh?

Which river flows through the states of Arunachal Pradesh and Assam and is a tributary of the Brahmaputra?

Rivers that pass through Himachal Pradesh are

Which river is the longest in India and flows through the states of Uttarakhand, Uttar Pradesh, Bihar, and West Bengal?

Which among the following river has its source in the Western Ghats and empties into the Bay of Bengal?