give an example of an invalid argument that gives a true answer?

Question

It could be a math example

Answer 1

All humans are mortal. (Premise)
George Bush is mortal. (Premise)
Therefore, George Bush is a human. (Conclusion)

All of these statements are true, but the conclusion does not necessarily follow from the premises (making the argument invalid). From the information given, it can't be determined whether or not George Bush is a human.

Answer 2

Here's a classic syllogism that even Aristotle missed (changing 'men' to 'human' to reduce confusion)

- All Greeks are human
- Some Greeks have brown eyes
- Therefore, some humans with brown eyes are Greeks

While the conclusion turns out to be true, and at first glance, even the argument appears valid, it isn't. The reason it isn't is because there is an assumption going on that isn't stated, namely, that there are Greeks. Likewise, a simllar assumption is made in the conclusion, which is that there are humans. To be valid, these two assumptions would have to be explicit.

Answer 3

Because all prime numbers are evenly divisible by 2, and because the square root of 9 is 5, 4 is the square of 2.

Answer 4

how fragile life is. freak accidents, motorcycle accidents, brain tumours. brains splattered on the platform, mangled bones, mothers gone mad. some dun even get the chance to reach their 20th bdae. to think i had thoughts of throwing away my life. thank You for stopping me then. felt really lucky for simply being alive, breathing n standing in the cabin wif my dear frens ard me crapping together.
life. a passing shadow, a candle in the wind. birth, a sunrise. death, a sunset. dust to dust, ashes to ashes.

sometimes i feel that life is an endless struggle, against the thgs dat are beyond our control and for the thgs dat we wanna keep close to our hearts. countless chances forsaken, silent tears of regret. their stories make me wanna cry. such twisted family backgrds. truly unexpected. children are the innocent ones that suffer frm broken marriages. nobody ever wanted to be born into a shitty family. but i guess no mothers want their kids to hate them. how do they tolerate such psychotic behaviour. it leaves emotional and physical scars. marks on the skin will fade, but the emotional turmoil could last a lifetime.

Answer 5

If acar stops running, it is out of gas. My car stopped running, therefore it is out of gas.

Answer 6

Are we Humans??