I never was, am always to be, No one ever saw me, nor ever will, And yet I am the confidence of all To live and breathe on this terrestrial ball. What am I?
Hint: I never was…
✨ The sun will come up ... Tomorrow
L3 · brain teaser
42
I never was, am always to be, No one ever saw me, nor ever will And yet I am the confidence of all T
I’ve got ten or more daughters. I’ve got less than ten daughters. I’ve got at least one daughter. If only one of these statements is true, how many daughters have I got?
Hint: I’ve got ten or more daughters…
✨ If I have any daughters, there will always be two statements which are true. Therefore, I have no daughters
L3 · logic
44
If someone says to you, “I'll bet you $1 that if you give me $2, I will give you $3 in return“, woul
If you screw a light bulb into a socket by turning the bulb toward the right with your right hand, which way would you turn the socket with your left hand in order to unscrew it while holding the bulb stationary?
Hint: If you screw a light bulb into a socket by turning the bulb toward the right wit…
Imagine you are in a room with 3 switches. In an adjacent room there are 3 bulbs (let’s say in lamps which are on a regular table), each switch belongs to one bulb. All are off at the moment. It is impossible to see from one room to another. No help from anybody else is allowed. How can you find out which switch belongs to which bulb, if you may enter the room with the bulbs only once?
Hint: Imagine you are in a room with 3 switches…
✨ You only need to turn on 1 switch as each switch belongs to one bulb. Walk into the other room and remove another bulb
L3 · logic
49
In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four close
In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly. The Question: How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly?
Hint: In a contest…
✨ It is not possible to guess only three fruits correctly: the fourth fruit is then correct too! So nobody has guessed three fruits correctly and 123-43-39-31 = 10 people have guessed four fru
L3 · math
50
Inside a burning house, this thing is best to make
Mary was working in a chemistry lab with a mixture of chemicals that was 90% water and weighed 20 pounds. After returning to the lab from a weekend break, she calculated the mixture was now 50% water. How much does the mixture now weigh? For purposes of this puzzle, assume the non-water part of the mixture was not affected by evaporation.
Hint: Mary was working in a chemistry lab with a mixture of chemicals that was 90% wat…
✨ 12 Pounds
L3 · math
54
My first is high, My second damp, My whole a tie, A writer's cramp
Once upon a time there was a beautiful princess named Anna. Anna’s father, the King, wanted to be sure his daughter married an intelligent man. To test his daughter’s suitors the King hid Anna’s picture in one of three boxes. The suitor had to be able to select the box with Anna’s picture on one try and within twenty seconds. On the gold box was the message “Anna’s picture is in this box“. The silver box had the message “Anna’s picture is not in this box.”“Anna’s picture is not in the gold box”was written on the bronze box. The King would tell each suitor “Only one of the three messages is correct.”Which box contained Anna’s picture?
Hint: Once upon a time there was a beautiful princess named Anna…
✨ The silver box contained Anna's picture
L3 · logic
57
One by one we come to life and side by side we wait, while our company swells in number some come ea
One by one we come to life and side by side we wait, while our company swells in number some come early some come late. Some will bore you, some enthrill, but you can not choose between us, you must take us one and all, because we’re bound together tightly and we’re naught if we break free; if you want some clues about us simply answer who are we?
Hint: One by one we come to life and side by side we wait…
✨ Chapters
L3 · brain teaser
58
Peter celebrated his birthday on one day, and two days later his older twin brother, Paul, celebrate
Some will use me, while others will not, some have remembered, while others have forgot. For profit or gain, I’m used expertly, I can’t be picked off the ground or tossed into the sea. Only gained from patience and time, can you unravel my rhyme?