Someone sent this riddle verse to me, but I cannot figure out the solution. Let me know if any one of you can figure out the solution to this riddle: उद्वया मम वृत्ति:च, भद्वयं मम भोजने । दद्वयं न अस्पृशद् दन्तान्, तद्वयं नास्ति मे गृहे ।।Madhav M. DeshpandeProfessor Emeritus, Sanskrit and LinguisticsUniversity of Michigan, Ann Arbor, Michigan, USASenior Fellow, Oxford Center for Hindu StudiesAdjunct Professor, National Institute of Advanced Studies, Bangalore, India[Residence: Campbell, California, USA]