Known answer: yes
Now, what could be the question and solution? Is accountant a difficult profession for a person suffering from Dyscalculia?
Accounting is a math intensive profession in which a person keeps or inspects financial accounts. Dyscalculia is a math learning disability that impairs an individual's ability to represent and process numerical magnitude in a typical way. Common symptoms of Dyscalculia include: difficulty with number sense. difficulty with fact and calculation. Dyscalculia is sometimes called “number dyslexia” or “math dyslexia.”.

Known answer: no
Now, what could be the question and solution? Would a modern central processing unit circuit chip fit on a housekey?
A CPU circuit chip is about an inch across. A housekey is generally less than a half-inch across.

Known answer: no
Now, what could be the question and solution? Did eggs need to be kept cold in the middle ages?
When eggs are freshly laid, they are covered in a film called a 'bloom.'. Eggs with their bloom intact are able to stay at room temperature for one month. Pasteurization destroys the bloom on eggs. Pasteurization was introduced in the 1990's.

Known answer: yes
Now, what could be the question and solution?
Could someone with fine motor control issues benefit from an altered keyboard layout?
Fine motor control involves making small, precise movements like painting or typing. The standard keyboard layout is designed to be used by someone without any motor control issues. There are modified keyboards for multiple types of disability.