21.   Burns said he was scratching his head over the goal.

22.   But even experienced Mac users spend some time scratching their heads over cryptic error messages and balky commands.

23.   But executives at Quantitative scratch their heads over complaints about fees charged to their shareholders.

24.   But somewhere the late, great distance runner must be shaking his head over the competition about to take place this summer.

25.   But, Lukas points out, Silver Charm won the Derby by a head over Captain Bodgit, who ducked in sharply in the stretch run.

26.   By all accounts, however, a frantic casting search is currently being conducted, while insiders are scratching their heads over the apparent casting misfire.

27.   Cheering his every stride along his reckless path, the crowd at Madison Square Garden fell head over heals for Sprewell.

28.   Cullen shakes his head over the tug-of-war surrounding claims to Long.

29.   Davis shook her head over my observation of birdhouses on metal poles at a nearby Fulton elementary school, on a site that was clear-cut.

30.   Disputes worthy of a senior team of diplomats come to a head over such delicate matters as mashed vs. sweet and corn bread vs. bread stuffing.