... said the examiner to the student:
'So, since you are studying the brain, what does it feel like to hold one?
I hear that it feels like jello.. and runs through your fingers'

... so the student and his supervisor went off and devised an answer to the question..

This brain, at least, looks, jiggles and tastes like jello -
watermelon jello to be precise..

and after the examiner "swallowed the question"
we proceeded to toast the former student, now PhD...
;-)