puzzled

The fact that none of the animals are reported to be infected with the virus has both puzzled and concerned public health experts.

Last September, scientists around the world were puzzled by an unusual rumbling traveling through the Earth.

One certainly hopes they are wrong, and voters will continue to be puzzled as to why they're being told to be scared about the personal business of strangers.

Yet still she puzzled over this man, whose life she never knew but for fragments of memory and family lore.

Earlier this year, the aid group said it was "shocked and puzzled" after its main office was raided as part of the same case.