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Questions tagged [calculation-puzzle]

A puzzle that involves numerical calculations, such as multiplication and addition.

7 questions with no upvoted or accepted answers
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10
votes
0answers
315 views

Cloudy with a chance of meatballs

I discovered that I can control the local weather, depending on what color shirt and hat I wear at a given location. My home country of Flanmanistan has hired me to go back and do drought and famine ...
6
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0answers
388 views

Locked Door Number Puzzle

I'm supposed to make a delivery to a crazed botanist. In case you're curious, the shipping manifest is: ...
5
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0answers
190 views

Numerical puzzle

A friend of mine sent me this puzzle, to solve it you need to use: 1) basic arithmetic operations. 2) Multiple numeral systems.
4
votes
1answer
431 views

What is the next sequence of numbers?

Seven and seven is forty-two, Eight and nine are fifty; Ten and eleven are sixty-two, And twelve and twelve are five. What is the next sequence of numbers?
3
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0answers
669 views

Number Sequence Series-Question 7

This is a series of questions that are created by me. Here is question 7: (23),(55),(155),(1255),?,?,(56139611) I will give a hint to you guys in one month if nobody can solve it.
2
votes
1answer
404 views

What's the missing number?

$\begin{array}{ccc}6&7&4\\ 4&11&14\\ 13&2&11\\ 6&8&1\\ 15&3&?\end{array}$ Own attempt at building a puzzle, find the missing number.
0
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0answers
69 views

Distinct SemiPrimes with Close Factors

I'm in the midst of developing a game for several friends as a friendly competition. It begins with generating the largest distinct semiprime feasible with factors that closely related in length ...