This symbol is on the packaging of an electrical item, what does it mean? Sorry if this is not the right place, but I couldn't find a more relevant exchange.

Find missing numbers in the sequence and decode the message Sequence - 81, 87, 69, 82, 84, 89, --, --, --, -- Message - 117 110 100 101 102 105 110 101 100 101 116 97 114 116 110 101 39 104 99 32 105 111 118 32 44 97 122 110 97 114 101 112 115 32 105 110 103 111 32 101 116 97 105 99 115 97 76

A Snail is slowly climbing a tree stump. The stump height is 100cm. At day, the snail manages to climb 20 cm upwards. At night, while sleeping, the snail slips 10 cm downwards. Q: On which day will the snail reach the top?

Each line of the puzzle is a different clue which refers to a different game. Once you've solved each clue take the first letter of the game and find the hidden message. Man called jon hates jewelry Famous three circles go mad with paint brush Green man gets scared A black and white dan...

Нi, plz help me with this: i am writing a web browser and need help. i want to parse html with regex. i hav found this: https://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags. when i try the things Justin Morgan proposed i get this error: Fatal syste...

After a long but rewarding life in an office cubicle, Sally the office worker became Sally the retiree. Feeling unfulfilled, and with ancestors who had served admirably in the Navy, Sally the retiree decided to take to the sea; Sally the retiree found a new hobby and became Sally the sailor. Sa...

Where can I learn how to solve the geared mixup cube? I searched Youtube and all I found were Spanish tutorials I didn't understand.

Follow-on from Tiling a rectangle with just the Y pentomino Two questions: Find the smallest rectangle that can be tiled with an odd number of Y pentominoes, or prove it impossible Find the smallest rectangle that can be tiled with just 'right-handed' Y pentominoes, ie no 'flipping', or prove ...

Recently I posted a trivia question using the trivia tag, however, it has now been closed as OT with this comment "I'm closing this question as off-topic because it is not a puzzle; it is simply a trivia question.." after it was learned that it was actually a trivia question as the tag indicates....

Interchange, in the least posible number of moves, the positions of the the two black knights and black rook with those of the two white knights and white rook. Movements allowed are those of the corresponding pieces in the game of chess within the portion of the board available. White and black ...