Citations:sphinx

The following cites were on the main entry but lack bibliographic information and cannot be found in Google:
 * (1934) The men of science will climb grassy hillsides of [Easter] island to peer at hundreds of great stone faces that have so far out-sphinxed the sphinx in determined silence about the past.
 * (1954) "What are you two sphinxing about?" said Jessica, but her husband said Never mind
 * (2010) She swiveled and sphinxed Giles. 'And you, I suppose you've never been here either?' Giles squirmed. 'Well, I – that is, Miss Wh—, I mean, Miss Taylor, I –' He looked to me for rescue.