Nature has blessed mankind with extraordinary commonsense and wisdom. We must use our intellect and ask ourselves who is the creator of the Sun, Moon, Stars, and Earth?
Who created all the living animals and our selves?
No need for Quranic reference. Our intellect is sufficient tell us, it is the Supreme Energy God Almighty who created all these.
Why God created us and for what? Earth is just like a vacation island. He created us to enjoy every moment of our lives having a positive attitude to help others disregard of their faith. He has given us the choice to choose right and wrong. Right means success and wrong mean failure.
Life is a journey where we go through the cycle of childhood, youth. old age and finally we die.