z100
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What is a Titanic Number™?
Accepted answer
9 votes

Titanic Number™ represents things sinking in the water and Non-Titanic Number™ things floating in the water.

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IQ test number sequence
Accepted answer
6 votes

It is 2124. Insert spaces to distinguish numbers: Explanation:

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Self Answering Puzzles
6 votes

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What is my teacher's favourite animal?
Accepted answer
5 votes

Reasoning: 3. As suggested and described by P... OP's note (Putting it all together) As suggested by Lance M. Peterson: Hence my teacher's favourite animal is:

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What's a general method to solve this calculation puzzle?
2 votes

This is a system of 4 equations with 4 variables: From 2nd and 4th equation: For easier writing let's put $1/c=x$ and insert $a$ and $d$ into 1st and 3rd equation: From here it is easy:

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My zodiac sign is: [REDACTED]
2 votes

Scorpius and Antares

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Can you fill the cells by integers?
2 votes

Let's assume the integers are $x,y,z$ and $-w$. All four equatins summed up gives $2x+2y+2z+2w=8+6+13+8$ or $2(x+y+z+w)=35$. Left side is even, right side is odd, so no integer solution exists. (see ...

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Square sequence puzzle 3
Accepted answer
2 votes

Next one is 0.

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Another Sequence of Sequences
Accepted answer
2 votes

Next sequence defined as: no. of characters x from previous one following an x. Ordered from 1 to 9. Example: aabbb, 2a3b, 12131a1b ... So next one: 212223 and then 114213, 31121314, 41122314, ...

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What is this group?
0 votes

Partial answer:

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What continues the sequence of integer pairs?
0 votes

It is a pair: Reasoning:

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how to resolve this 3*3 cube
0 votes

Yes, there are many methods, you can find them allover the net, some experts may resolve your situation in 2-3 seconds, including the brute force method removing first one of the bottom middle cubes, ...

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You have one question to tell whether the number I'm thinking of is 1, 2, or 3
-1 votes

A little tricky, question seems not to ask for enough information, however: answer: NO(2) >> 1 ; answer: YES(3) >> 3 ; answer MAYBE(5)/DON'T KNOW(8) >> 2 (two) If the number is 2, answers YES (3 ...

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