Sacrifices for ancestors are generally odd, three to five, and the number of each is also odd, three to five. Sacrifices should respect religious, ethnic and regional customs. The number of offerings is regulated, that is, three or multiples of three. But it cannot be an even number. Some customs are said by three ghosts and four gods. Just follow the local customs. For example, if the offering placed can be one plate, but if there is more than one plate, it must be three plates, six plates and nine plates. The number of plates placed cannot be even.