It is common question among the learned people all over the world. The simple answer is yes I am an Hindu (this avoids further queries). Sometimes you have to go deeper and then it becomes tricky. Then you have explain that there is nothing really called Hinduism in the tradition of other prophet based religion, and name itself is a misnomer. There is no vedic authority for this name, more appropriate would be Sanatan Dharma. Then question of explaining your religion in few words makes it very difficult. I would like to hear from other learned people.