The Religion that only makes sense on solving the problem of sin is Christianity.. Hinduism says it is reincarnation, whereby u are born to a lesser creature but u r no longer aware of ur self - that is not a just punishment. Others talks about amending ur ways as payment for ur sin, but a thief who stops stealing is not the payment for his theft, he must still pay. Only Jesus(who voluntarity) who took the punishment for our sin is the real gospel..