11 questions linked to/from Determine the algorithm
707 views

### Which number does 1995 correspond to in this number pattern? [duplicate]

I saw this puzzle many moons ago and so I assumed it would already be on here somewhere. I have looked and not found, though, and so I present to you a puzzle that baffled me when first I saw it. What ...
724 views

A friend gave me this riddle, stating that it would be easy for children but hard for grown-ups. Any combination of four digits has an determined value. Here are some examples (note, the position of ...
487 views

### Crazy number puzzle.. Any Mathematicians? [duplicate]

Below is a sequence of four-digit numbers and characters that are associated with them. Can you crack the code and find out what 2963 = ? ...
463 views

### Math riddle question please [duplicate]

My husband and I cannot figure out this mathematical riddle, to save our lives, despite him being a math teacher. The riddle is as follows: 8898=7, 4566=2, 1203=1, 4566=2, 5464=1, 7774=0, 9856=...
155 views

### It seems kids can resolve this puzzle faster than developers [duplicate]

It seems kids can resolve this puzzle faster than developers So, can you solve this puzzle ? | 8809 = 6 | 5555 = 0 | 7111 = 0 | | 8193 = 3 | 2172 = 0 | 8096 = 5 | | 6666 = 4 | 1012 = 1 | 1111 = 0 |...
659 views

### What is the next number in this puzzle [duplicate]

What is the relationship of this sequence and what is the answer for the last? 0001112359 = 4 1887145865 = 7 5528695874 = 6 0000085021 = 8 3247514251 = 0 5847962150 = ?
145 views

### Some crazy equations [duplicate]

8 = 2 68 = 3 91 = 1 32 = 0 883 = 4 761 = ? What number should be instead of ? in this: ...
204 views

### Depressed Numbers [duplicate]

$12 = 0$ $1234 = 1$ $123456 = 2$ $12345678 = 4$ $369 = 2$ $248 = 3$ $2 = 0$ $3 = 0$ $5 = 0$ $7 = 0$ $11 = 0$ $13 = 0$ What does: $123456789 = ?$ Why? Hopefully isn't too hard, please ask if you ...
153 views

### Number trouble in here [duplicate]

I have been given 24 hours to solve this. So, my friend has given me 10 examples. $$1024 = 1$$ $$1000 = 3$$ $$2880 = 5$$ $$6591 = 2$$ $$2113 = 0$$ $$1345 = 0$$ ...