Answer:
#1 1.12 billion Hindus around the 4th biggest religion if you count all unreligious people. If not then 3rd largest religion. #2 around 2300 BCE (technically between 2300 B.C. and 1500 B.C because some disagree) I would say 2000 BCE to be safe which makes Hinduism the oldest religion #3 Northern India to be safe but there is some "evidence that the origin is china" #4 I would say meditation #5 Hair line also can be said to be a dot on the forehead. Feel free to fact check anything. Have a good day!
Explanation:
researched it for 20 minutes and some i already knew