Crossword clues for Think up 5 letters:THINKUse gray matterTHINKEND OF QUOTETHINKKind of tankTHINKUse the beanTHINKIdeateTHINKPut your mind to workTHINKIBM's __ exhibitTHINKAssumeTHINKCorporate mottoTHINKGet ideasTHINKI need you to remember this!THINKUse your noodleTHINKReflectTHINKCogitateTHINKReasonTHINKRack one's brainsTHINKAptly named Final Jeopardy! theme songTHINK47 Down mottoTHINKIf I Only Had a Brain verbTHINKOffice wall sign.THINKIronic twist to a one-word maxim.THINKJust _____!THINKSomething to do twice?THINKWith 61-Across, carefully consider ... or a clue to this puzzle's themeTHINKWith 19-Across, reconsider ... or a hint to the starts of the five starred cluesTHINKUse your headTHINKMaintainTHINKRuminateTHINKBe reasonable?THINKExercise one's gray matterTHINKUse one's headTHINKC'mon, Aimee, ___! There's gotta be a good clue out there for this word ...THINKEnd of the observationTHINKIBM slogan that inspired an Apple sloganTHINKTry to remember!THINKType of tankTHINKTank typeTHINKUse one's noodleTHINKDream (up)THINKPonderTHINKUse your brainTHINKSign on an office wall.THINKMotto for the office wall.THINKFamous IBM office signTHINKExcogitate.THINKCerebrate.THINKDo some cerebratingTHINKEngage in cerebrationTHINKSign in an office.THINKConcentrate!