Many thanks to:
X
Mark
Drewdad
Who between them came up with the answers.
Imagine Wheel A with a diameter x, rolling around fixed Wheel B, with diameter 2x. How many revolutions about its own axis will Wheel A make in rolling once around Wheel B ?
Wheel A makes three revolutions about it own axis in rolling once around Wheel B. Since the circumference of Wheel A is half that of Wheel B, this produces two rotations with respect to Wheel B, and the revolution adds a third rotation with respect to an observer from above.
There are three boxes, one containing 2 black marbles, one with 2 white marbles, and one with a black and a white marble. The boxes are all labeled wrongly.
How many times must you pick a marble blindly out of one box, to correctly identify what each box contains?
Two. Since all the boxes are mislabeled each box has two possible correct label choices. Pull two marbles out of any one box. Once you know what that box should be labeled, that choice is eliminated for the box that wasn't already using the particular label, and all the others fall into place.
A tennis tournament starts with 100 players. How many matches must be played until a winner is arrived at?
You may consider the answer a bit on the harsh side, and we do take your views seriously, however the judge's decision is final.
One. There will be a winner and a loser after each match.
You have 112 black socks and 123 white socks mixed up in a drawer. How many socks must you pull out, blindly, to be sure of getting a matching pair
Three.
A barbecue grill holds two steaks at a time. It takes 10 minutes to grill one side of a steak. How long will it take to grill 3 steaks on both sides
30 minutes.
Steak 1-side 1 and Steak 2-side 1,
Steak 1-side 2 and Steak 3-side 1,
Steak 2-side 2 and Steak 3-side 2
Thank you Dadpad, I have tried it out, with one change in the rules - ?'cuts' .
This involves any person who has already called out a non 7 related number being able to take another place in the group. This resulted in people standing at 5 or 6 suddenly finding they were in the ?'hot seat'.
Anyhoo, good fun and more difficult than it first seems, and this is whilst sober.
?'X' having xposed the secret of a circle, writes, "As for socks, who wears two of the same color anyway? That's just plain boring."
Man, you guys must be rich. I can only dream of socks next to my skin.
A man went into his local US post office, walked up to the lady behind the counter, proffered a dollar, and said, "Give me some 2¢ stamps, ten times as many 1¢ stamps, and the balance in 5¢ stamps."
How was this puzzling request met
What is the one thing shared by all three items in the same group
A: a cow, a shoe, a baby
B: a doctor's office, a post office, music
C: a zipper, a shark, a comb
D: restaurant goer, a bird, the Senate
E: a potato, a hurricane, a target
F: a river, a person, a cave
Answer the following question with a simple "yes" or "no":
If the day before the day after the day before today was hotter than the day after the day before today, was the day before today hotter than today