We secured the bicycles to the roof racks before hitting the highway.

It's common to rack one's brains over a tricky crossword clue.

When confronted with the puzzle, one racked one's brains for hours before finding an answer.

One racks one's brains to remember how to solve the problem.

One racked one's brain trying to remember the exact wording of the contract clause.

When a familiar face appears and the name won't come to mind, one racks one's brain to remember it.

One may rack one's brain for days trying to solve a difficult puzzle.

He tends to live at rack and manger, always enjoying the finest meals and comforts at others' expense.

I yelled, 'rack off, hairy legs!' when the stranger kept following me.

The interrogator spoke rackingly, each question designed to inflict pain.