Today's PUZZLE CLASSIC OF THE DAY

Place digits 1 through 9 into the equation so that to get the sum of 99,999.

Draw a Greek cross (a cross with 4 arms of equal length), moving from dot to dot so that exactly 5 dots are enclosed inside the cross and 8 dots are outside of it.

While in a museum, an old clock with Roman numerals got cracks on its face, dividing it into 4 parts with unequal totals in each - 17, 20, 20, and 21. If one crack would split one of the Roman numerals it would allow to reach 4 parts with the sum of 20 in each. Can you replicate that number and how the crack should split it?

A half-ready 4x6 fuse board has 4 square apertures in it. Cut it into 4 identical panels, each with one aperture, so that a panel's length is no bigger than the fuse board's width.

Cut this P-shaped board into 4 congruent parts (identical in area and shape, though they can be mirrored), which all are scaled versions of the board (similar).

It is possible to cut a hole in one cube to enable another identically-sized cube to pass through it. What would be a shape of the minimal cross-section of such a hole?

How many different squares are indicated by 4 dots marking their corners?

How many different squares indicated by four spots can be spotted here?

What is bigger: the all digits' product or the all digits' sum?

It is possible to draw this shape without: a) taking your pencil off the paper; and b) going over any segment twice. Staring from any outer corner and not counting it as a turn, how many turns will be there in order to get back to the starting point?

It is possible to draw this shape without: a) taking your pencil off the paper; and b) going over any segment twice. Staring from the top left corner and not counting it as a turn, how many turns will be there in order to get back to the starting point?

How many squares can you find in this shape? Select a square and click the "Count" button.