If Erica lives in New York and Tina lives in Buenos Aires, where does Mark live?
SOLUTION
New York is the largest city in the United States of Am-Erica. Buenos Aires is the largest city of Argen-Tina. Therefore Mark lives in Den-Mark’s largest city – Copenhagen.
Can you find what the following abbreviations stand for?
24 H in a D = 24 Hours in a Day 26 L of the A = ??? 7 D of the W = ??? 7 W of the W = ??? 12 S of the Z = ??? 66 B of the B = ??? 52 C in a P (W J) = ??? 13 S in the U S F = ??? 18 H on a G C = ??? 39 B of the O T = ??? 5 T on a F = ??? 90 D in a R A = ??? 3 B M (S H T R) = ??? 32 is the T in D F at which W F = ??? 15 P in a R T = ??? 3 W on a T = ??? 100 C in a R = ??? 11 P in a F (S) T = ??? 12 M in a Y = ??? 13 is U F S = ??? 8 T on a O = ??? 29 D in F in a L Y = ??? 27 B in the N T = ??? 365 D in a Y = ??? 13 L in a B D = ??? 52 W in a Y = ??? 9 L of a C = ??? 60 M in a H = ??? 23 P of C in the H B = ??? 64 S on a C B = ??? 9 P in S A = ??? 6 B to an O in C = ??? 1000 Y in a M = ??? 15 M on a D M C = ???
SOLUTION
24 H in a D = 24 Hours in a Day 26 L of the A = 26 Letters of the Alphabet 7 D of the W = 7 Days of the Week 7 W of the W = 7 Wonders of the World 12 S of the Z = 12 Signs of the Zodiac 66 B of the B = 66 Books of the Bible 52 C in a P (W J) = 52 Cards in a Pack (Without Jokers) 13 S in the U S F = 13 Stripes in the United States Flag 18 H on a G C = 18 Holes on a Golf Course 39 B of the O T = 39 Books of the Old Testament 5 T on a F = 5 Toes on a Foot 90 D in a R A = 90 Degrees in a Right Angle 3 B M (S H T R) = 3 Blind Mice (See How They Run) 32 is the T in D F at which W F = 32 Degrees is the Temperature in Fahrenheit at which Water Freezes 15 P in a R T = 15 Players in a Rugby Team 3 W on a T = 3 Wheels on a Tricycle 100 C in a R = 100 Cents in a Rand 11 P in a F (S) T = 11 Players in a Football (Soccer) Team 12 M in a Y = 12 Months in a Year 13 is U F S = 13 is Unlucky For Some 8 T on an O = 8 Tentacles on an Octopus 29 D in F in a L Y = 29 Days in February in a Leap Year 27 B in the N T = 27 Books in the New Testament 365 D in a Y = 365 Days in a Year 13 L in a B D = 13 Loaves in a Baker’s Dozen 52 W in a Y = 52 Weeks in a Year 9 L of a C = 9 Lives of a Cat 60 M in an H = 60 Minutes in an Hour 23 P of C in the H B = 23 Pairs of Chromosomes in the Human Body 64 S on a C B = 64 Squares on a Chess Board 9 P in S A = 9 Provinces in South Africa 6 B to an O in C = 6 Balls to an Over in Cricket 1000 Y in a M = 1000 Years in a Millennium 15 M on a D M C = 15 Men on a Dead Man’s Chest
Suppose you have 10 people with different heights in one row. Show that you can always remove 6 of them, so that the remaining 4 are arranged with respect to their heights (either increasing or decreasing).
SOLUTION
Mark the first person with number 1. Look for the next person after him, who is taller, and also mark him with number 1. Then look for the first person after the second one, who is taller, and also mark him with number 1. If you find a fourth one, then you already got the four people you are looking for.
If not, mark the first unmarked person with number 2. Look for the next unmarked person after him, who is taller, and also mark him with number 2. Continue with the procedure, until you either find 4 people in the line, whose heights are increasing, or have people who are marked with numbers 1, 2, 3 and 4.
Now pick a person, who is marked with number 4. Then look for the closest person on the left, who is marked with number 3, pick him up. He will be taller, because otherwise the first person would have been labeled 3 as well. Similarly, look for the closest person, marked with 2, on the left of the last one, pick him up. Repeat this once again and you will find 4 people in the line, whose heights are decreasing.
Tools were stolen from a construction site. Max Mouse found footprints and a tire track, leading him to believe there were two thieves – one walking and the other riding a bike. Even though Slylock Fox believes both tracks are related to the robbery, he suspects there was only one thief. Why?
SOLUTION
The tire track cannot be from a bike. The tracks were left by one thief pushing a wheelbarrow, full of stolen tools.
It is White’s move next. Is this game a win for Black or a draw?
SOLUTION
The game is a draw. The first two moves of White are Kg7 and Kf6. If Black moves the king twice in the meantime, then White can get to the pawn on the h-file and take it. If Black moves the king once, then White plays Ke5. If Black moves the king again, White can take the pawn on the h-file. Otherwise, White plays Kd6 and can promote his pawn right after Black promotes his. Finally, if after Kg7 and Kf6 Black moves the pawn twice, then White plays Ke7, and once again can promote his pawn right after Black promotes his.
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