Brain Teasers

p1 = 1 min
p2 = 2 min
p3 = 5 min
p4 = 10 min

p1 & p2 cross = 2 mins across and 1 min back for p1 = 3 mins
p3 & p4 cross = 10 mins and 2 mins back for p2 = 12 mins
p1 & p2 cross = 2 mins

Total time 17 mins





p3 is 5 mins not 2 mins, so the 2nd line should read 5 mins back for a total of15 mins
 
You must go first and place your coin in the center of the table? I'm thinking in this sense, no matter the size of the table, you'll have the advantage mathematically.

Yep you have the first part but there is a further step to the strategy.
 

p3 is 5 mins not 2 mins, so the 2nd line should read 5 mins back for a total of15 mins

Not so, p3 is not the person coming back over p2 is.
 
Two fathers and 2 sons go fishing. Between them they catch 3 fish. Each takes one fish home.

How?
 
Two girls are born to the same mother, on the same day, at the same time, in the same year and yet they're not twins.

Must have been a hell of a squeeze being born at the same time. :D
Caesarian perhaps?
 
Well played you three, Well played.


Two girls are born to the same mother, on the same day, at the same time, in the same year and yet they're not twins. How can this be?
Is the Mother a Hen or some kind of egg layer?
 
Is the Mother a Hen or some kind of egg layer?

No, it was answered a while ago. They are 2 parts of a set of triplets.

OK new one..
Complete this sequence of letters: o, t, t, f, f, s, s, _, _, _.
 
What occurs once in every minute, twice in every moment, yet never in a thousand years?
 
The letter "m" by the looks of it.

No mensa for me I just like puzzles.

hmm... alright... well the M one was easy.. lets try..this:

Which English Word has nine letters, and remains a word at each step even when you remove one letter from it, right up to a single letter remaining. List each letter as you remove them, along with the resulting word at each step.
 
hmm... alright... well the M one was easy.. lets try..this:

Which English Word has nine letters, and remains a word at each step even when you remove one letter from it, right up to a single letter remaining. List each letter as you remove them, along with the resulting word at each step.

I have found two possible answers:

Answer #1

Start with the word Startling

Remove the letter l leaving the word Starting
Remove the letter t leaving the word Staring
Remove the letter a leaving the word String
Remove the letter r leaving the word Sting
Remove the letter t leaving the word Sing
Remove the letter g leaving the word Sin
Remove the letter s leaving the word In
Remove the letter n leaving the word I


Answer #2

Start with the word Stringier


Remove the letter r leaving the word Stingier
Remove the letter i leaving the word Stinger
Remove the letter t leaving the word Singer
Remove the letter r leaving the word Singe
Remove the letter e leaving the word Sing
Remove the letter g leaving the word Sin
Remove the letter s leaving the word In
Remove the letter n leaving the word I

 
I have found two possible answers:

Answer #1

Start with the word Startling

Remove the letter l leaving the word Starting
Remove the letter t leaving the word Staring
Remove the letter a leaving the word String
Remove the letter r leaving the word Sting
Remove the letter t leaving the word Sing
Remove the letter g leaving the word Sin
Remove the letter s leaving the word In
Remove the letter n leaving the word I


Answer #2

Start with the word Stringier


Remove the letter r leaving the word Stingier
Remove the letter i leaving the word Stinger
Remove the letter t leaving the word Singer
Remove the letter r leaving the word Singe
Remove the letter e leaving the word Sing
Remove the letter g leaving the word Sin
Remove the letter s leaving the word In
Remove the letter n leaving the word I


Are you googling the answers?
 

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