Toilet Trained Tourists

You could paint tires in all kinds of colours because you can mix the colour with the fluid rubber.

E4
I know you think this doesn't concern you but I'm still going to tell you about a Quebec waterfront tourist hotel in Canada called somethingortheother that was destroyed by fire a few years ago. While all of you are probably thinking, "So, why should I care?" I say, wait and hear me out here. Some of the rooms in it were constructed in such a way that they shared a common toilet sandwiched in between, with two doors - one from each room (and facing each other) - opening into it. Get the point at last? Meaning when you went in to, say, micturate, you naturally locked both doors from the inside. But later when you were done, you, more often than not, only unlocked the door leading back into your room to go out and totally forgot all about the other door. That left the person in the other room snarling and unsnarling his or her legs all day in futile anticipation. What do you think the hotel management did, without resorting to fancy electronic equipment, to ensure that when you unlocked one door, the other also automatically unlocked?
DEAR MS
(The problem was: "You could paint tires in all kinds of colours because you can mix the colour with the fluid rubber. So, why aren't tyres coloured?"- MS)
Tired-Of-Colours-Dept:
If tyres are to be coloured, paints are to be used. Paints contain chemicals and additives, which will weaken tyres , reduce their life and also increase cost. During manufacture, the foremost stabilising chemical, carbon (completely black), is blended with the tyre polymer for longevity through heat resistance.

• Surya Narayanan Krishna Moorthy, surya661666@yahoo.com
  

At an Essen motor show, Italian tyre giant Marangone displayed its M430 in a classic red-to-white colour scheme and bespoke red tyres.

• Saikrishna Swaminathan, saikrishna.s1998@gmail.com
  

The second problem was: "100 people are standing in a circle. #1 shoots #2 and gives the pistol to #3. He in turn shoots #4 and gives the pistol to #5. This goes on until only one person is left. If given a choice, which position would you select to become the lone survivor? What if there were 200 people instead?" - MS)
Shoot-'Em-Up-Dept:
To be the lone survivor, I would choose to be at position 73, if there were 100 people. If there were 200, I would choose position 145.

• Aaditya Shankar Natarajan,
  

(The third one was about why coffee stains on a concentrate in a darker ring around the boundary? - MS)
Black-Coffee-Dept:
This pattern is due to capillary flow in which more of the liquid-carrying coffee particles evaporate at the edges than in the centre. So more solids are deposited at the edges, which means that the dark material is thicker at the edges and darker than other parts of the stain.

• Saifuddin S F Khomosi, saif_sfk@hotmail.com
  

Sprinkle pepper powder on water in a bowl. The powder will randomly float on the surface. Apply some soap on your finger and dip it in the water. The pepper powder will gravitate towards the side of the beaker. Initially, the surface of the water is like a stretched membrane and the pepper powder ?is held up by it. The soap on your finger breaks this membrane and it is pulled towards the edge to attain the least surface area. Similarly, the drop of coffee that drips on the tablecloth initially forms a membrane that has a uniform colour. When the stain starts to dry, the surface breaks and the coffee grounds are pulled towards ?the edge of the stain giving the edge a darker colour. - Balagopalan Nair K, balagopalannair@gmail.com
ENDGAME(S)

1. Circle A has 1/3 the radius of circle B, and circle A rolls one trip around the circumference of B. How many times will circle A rotate in total?
2. Tough Trivia Time: Which non-Indian country's former president's nephews were named Ranjit and Chanda Shahani?

(Mukul can be reached at mukul.mindsport@gmail.com)
 

• Mindsport