Puzzle

Its earliest use documented in the OED was in a book titled The Voyage of Robert Dudley...to the West Indies, 1594–95, narrated by Capt.

People with a high level of inductive reasoning aptitude may be better at solving such puzzles compared to others.

But puzzles based upon inquiry and discovery may be solved more easily by those with good deduction skills.

In certain regions, PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition and Subtraction) is the synonym of BODMAS.

Some mathematical puzzles require top to bottom convention to avoid the ambiguity in the order of operations.

It is an elegantly simple idea that relies, as sudoku does, on the requirement that numbers appear only once starting from top to bottom as coming along.

[9] By the early 20th century, magazines and newspapers found that they could increase their readership by publishing puzzle contests, beginning with crosswords and in modern days sudoku.