BrainBashers - Random Puzzles

Puzzle 1

Which is greater, the number of grooves on one side of a vinyl record (if you can remember them!) or the number of days in the year?

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www.brainbashers.com /puzzle/zaon share

Puzzle 2

My BrainBashers calculator is low on batteries again, and the following multiplication is wrong. Can you correct it?

Each of the numbers has the correct digits, but they have been mixed up.

Luckily, the solution is correct, which makes the task a little easier.
2471
3725 x
————————
22084429

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www.brainbashers.com /puzzle/ztdt share

Puzzle 3

James, Simon, Ian, and William all like walking.

But Dave, Steven, Alan, and Alastair do not.

Does Adrian?

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www.brainbashers.com /puzzle/zvdb share

Puzzle 4

Starting with the 6 in the bottom left corner, what is the highest total you can make, if you only move up or right, using the mathematical signs on the way?

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Note: this puzzle is not interactive, and the numbers cannot be clicked.

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