Riddles & Brain Teasers

[MrKaplansGlasses]

Does anyone know any good ones? DH and I live an exciting life and have been trying some brainteasers out on each other. I appear to have run out now but I want some really tricky ones to get him with tomorrow if anyone can help!

Three good answers! @ScreamingValenta has it right: the catch is that many people who hear this go straight to socks and shoes, and are adamant he must be wearing socks.

Here's another classic: how many cubic metres of earth are there in a hole 5m wide, 2m long, 1m deep?

Wanderings - none, as if it's a hole the earth has been dug out of it.

A friend had a new girlfriend so he invited four couples (including me and my wife) over to meet her. As the ten of us were sitting round the table, I asked each in turn how many of the other people present they knew (as a personal acquaintance) before tonight.

The new girlfriend only knew the host so answered 1. The host naturally knew everyone so answered 9. What was surprising was that the other seven's answers covered all the numbers in between 1 and 9.

Then someone asked me "what would be your answer to the question?" Can you logically deduce the answer I gave?

8? Bevaus

Ignore that - I need to think more!

I'm quite stuck on this one at the moment. I think I need to draw a diagram!

Is it 5?

Because 9 and 1 have gone, then couple ‘B’ if he’s eight, he knows everybody except the girlfriend and one other. His wife has to be 2, because everybody else knows the host, B and their spouse. Then 7/3 pair and 6/4 pair, as do 5/5.

5 is the repeated number, so must be you?

When I say “their spouse” I’m mean their own.

So everybody has at least one connection to begin with. B’s wife is the only one that can only know 2, as everybody else has their spouse, the host and Friendly Mr B so must know 3 or more.

At the big MN meetup, MNetters redconverse, greenconverse and blueconverse were all chatting together about how marvellous Converse shoes are.

"AIBU to point out," said the MNetter in blue Converse shoes, "that we are all wearing Converse which correspond to our names, but none of us are wearing the colour which matches our names?" redconverse looked at everybody's feet, and said "you're absolutely right".

What colour shoes is each MNetter wearing?

@PolkadotsAndMoonbeams - correct, although I think @Maxstress3 psychically got it in her mysterious post at Thursday 22:38.

Why is April the 4th daughter?

Gabsdot is someone naming their daughters after the months of the year? Or is that too obvious?

greenconverse = blue shoes
redconverse = green shoes
blueconverse = red shoes

I think that’s correct...

Gabsdot The first sentence states that April’s mum has 4 daughters

The other three are named later, and then April is the 4th (assuming April is female, of course!). The trick is that most people ignore the fact that one of the names has been given as the first word of the puzzle!

is someone naming their daughters after the months of the year? Or is that too obvious?

Well, it could be that or it could be the clue from the problem where it states " April's mum has four daughters"

Smiling beat me to it.

But how do you know April is the fourth daughter? As in born 4th, There is nothing to indicate that she is the youngest.
Am I reading too much into it?

Unless they are in the Southern Hemisphere where the month April is in the Autumn and there is already an Autumn so when mum has a baby in April she can't name it Autumn so names it April.

I don't think it means 4th in the sense of the youngest of 4, just that having listed the name of three of them, what is the name of the 4th?

@SmilingButClueless That is right. But presumably you're not too clueless to understand why?

It's well-known that Christmas Day and New Year's Day fall on the same day of the week. However, in the year of the outbreak of WW2 in 1939, they were on different days of the week. Why was this?

25 December 1939 and 1 January 1940 are on the same days of the week, 25 December 1939 and 1 January 1939 are not.

I see this thread has been moved to the Geeky Stuff board, which I don't think I've ever visited before now!

The converse one- it doesn’t matter what colour they’re wearing. The converse correspond to their names because they all have the word converse in the name.

Am i right?

No. We know that the one in blue and redconverse are two different people, and redconverse can't be in red, so the one in blue must be green converse, redconverse has to have green shoes and blueconverse would be in red.