Father’s Day ;-)
Fun start to the day…
After a much delayed flight last night, little sleep and no run this morning, I needed something fun to start the day with. So, I told the lady at the Starbucks that my name is “Dude”. And that is what she put in my cup. And of course the other lady brewing coffee yelled it out before even she realized it… causing some fun among the few of us waiting for our coffee there…. ๐
Rope length puzzle
Case A: Imagine you have a rope tightly wound around a basketball. How much more rope do you need for the rope to be one foot away from the surface of the basketball at all times? (as if it is tightly wound around an imaginary ball that has radius one foot more than the radius of the basketball). I do not need an exact answer now. Just imagine it.
Case B: Now imagine you have a rope tightly would around the equator of the earth (what, about 25,000 miles or so?). How much more rope do you need for the rope to be one foot away from the equator at all times? (as if the radius of the earth had increased by a foot). I do not need an exact answer now either. Just imagine it.
Now for the puzzle:
In which case do you think you need more rope – Case A or Case B? Any rough idea by how much?
Remind me to catch her a couple of seconds earlier :-)
What is worse than me going to a fountain pen shop?
It takes a nerd to appreciate one…
Too early for a puzzle?
I know it is only Tuesday but I am on my flight back home and there are two of my friends who have sent me puzzles that I thought can be posted here…
This one comes courtesy of Amrith Kumar. I sent him an answer – but I have not received confirmation whether I am right or not. So, we might have to wait till he publishes the answer.
Think of all the 4 digit numbers ( leading 0s count). Essentially 0000 to 9999. Now pick only those numbers where the first two digits add up to the same number as the last two digits. So 1533 qualifies as does 0312 and so on.
You have to prove that the total of all such numbers (if you add them up) is divisible by 3 as well as 11.
Have you ever seen this?
Terminal B at Washington Dulles airport.
There are two Starbucks literally facing each other!
One of them (the left one in my panorama picture) has name and logo written in white and black (the other one is in familiar white and green)!!
The one on the left serves wine!!!
Why one would go thru the hysteresis curve of waking up with coffee from the green Starbucks and then doze off with the wine from the black Starbucks, beats the heck out of me ๐





