The person asking the question is talking about a brain teaser. It is probably the the one which shows the word 'swear' over bible, and resolves to 'swearing on The Bible".
Or, just possibly, "swear on a stack of bibles".
mosquito
Backwards
Big Brained (or smart)
Turkey in the straw
Pea pod.
Big Brained (or smart)
It mean "clever after thought"
"Open sesame."
Scre yu
Seasons
2 rights
equestrian without the H