Design and Do XVI
This challenge contains 10 logic and reason items.

151. These thirteen matchsticks are arranged to form four squares.

what matches are made of

Can you remove one matchstick and rearrange three others to spell the word that matches are made of?

When you have a solution and want to verify it, click [CHECK].


152. The Greek rhētor Anaximenes poses a logic problem to each student who wants to enroll in his school. Are you an eligible applicant?


What order should the cards be placed? Which statements are true?

When you have a solution and want to verify it, click [CHECK].


153. In the string of letters below, can you cross out all the unnecessary letters so that a logical sentence remains?

A L A L T L H
O E G U I C N A N L
E S C E E N S T S E A N R C Y E L
R E E T M A T E I R S N S  

When you have a solution and want to verify it, click [CHECK].


154. Can you draw this triple-square figure without lifting your pencil from the paper, retracing any lines, or crossing them?

When you have a solution and want to verify it, click [CHECK].


155. A group of women once asked Scintilla how many guests were invited to her next Saturnalia banquet.

Scintilla replied, "One-half are Romans, one-fourth are Greeks, one-seventh are Egyptians, and three others besides."

Can you figure out how many guests Scintilla invited to the banquet?

When you have a solution and want to verify it, click [CHECK].


156. An unscrupulous merchant was discovered to use a false balance scale with arms of unequal length. A cheese put into one pan of the scale was found to weigh 16 pounds. When placed in the opposite pan, it weighed 9 pounds only. What was the actual weight of the cheese?

balance scale

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157. Prior to a meeting of the Senate, Gaius Perplexus challenged the assembly with this proposal: "I'll give an amphora of wine to the first citizen who can answer this question correctly."

In what month do Romans drink the least amount of wine?


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158. When a boy asked the swineherd how many pigs were in his drove, the subulcus replied: "If I had as many more and half again, plus 7, I would have 32. You figure it out..."

drove of pigs

When you have a solution and want to verify it, click [CHECK].


159. The pips on opposite faces of a die always add up to seven, and the pip design is consistent from die to die.

dice towers


Which tower's bottom six faces add up to a greater sum?

When you have a solution and want to verify it, click [CHECK].


160. Tignarius wanted to cut a plank into two equal pieces. He proceeded to cut it halfway through on each side, and yet found he had two feet still to cut. How could this happen if the board was six feet long and two feet wide?

When you have a solution and want to verify it, click [CHECK].

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