Daily Brain Teasers for Sunday, 15 March 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If c7cba - 392ca = bc56a find number abc. Multiple solutions may exist.
What a winning combination?
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (5, 7, 8, 17, 19, 20, 34, 36, 37, 50, 63, 85) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B*C.

Unputdownable Laughs: Jokes for Book Lovers Guaranteed to Elicit Giggles
Short book Jokes
A book fell on my head.
I can only blame my shelf.
I found a foolproof way to avoid sunburns.
It’s called ‘stay inside all day and read.’
I’ve spent all day reading.
It was bound to happen.
My TBR pile is out of control:
I have no shelf control.
After watching me read War and Peace, my son asked me,
“Dad, why is your book so thick?”
I said, “Well, it’s a long story.”
I’m reading a book about anti-gravity.
I just can’t put it down.
It’s so easy to get lost in a book about mazes.
I like big books and I cannot lie.
You can’t buy happiness, but you can buy books, and that’s practically the same thing.
That book about Mt. Everest
had quite a cliffhanger.
Dystopian novels
are so 1984.
Never read Fitzgerald?
You Gatsby kidding me!
I got my friend to read Jane Austen.
She just needed a little Persuasion.
Have you heard about Waldo? He went abroad and found himself.
ISBN thinking about you.
Past, present, and future walked into a bar.
It was tense.
Did you hear about the author in jail?
They put him in the writer’s block.
Couldn’t get past his first sentence.
Witches are the best editors because they always run spell-check.
I’ve written a book about falling down a staircase.
It’s a step-by-step guide.
Talk wordy to me.
Q/A Book Jokes
Q: Why are books so afraid of their sequels?
A: Because they always come after them.
Q: Why do bookworms break up?
A: Because they’re not on the same page.
Q: Why are books so brave?
A: They have the spine for it.
Q: What do you call 2,000 mockingbirds?
A: Two kilo mockingbird.
Q: Why did the kid always sit in his wardrobe when reading a book?
A: Narnia business!
Q: What is Bigfoot’s favorite book?
A: Hairy Potter.
Q: What did the librarian say to someone who checked out over 100 books?
A: “Are you sure you want to borrow all those books? You don’t want to overdue it.”
Q: Why did Dracula go to the library?
A: He wanted to sink his teeth into a good book.
Q: Why can’t you go to the world’s biggest library?
A: It’s always overbooked.
Q: How do libraries make sure novels stay warm?
A: They give them book jackets.
Q: Why was the library so tall?
A: Because it had a lot of stories.
Q: Why are writers always cold?
A: Because they’re surrounded by drafts.
Q: What is the spookiest kind of author?
A: A ghostwriter.
Find number abc
If b1ac9 - c99c5 = 11b04 find number abc. Multiple solutions may exist.
James Joseph SylvesterDied 15 Mar 1897 at age 82 (born 3 Sep 1814). British mathematician who, with Arthur Cayley, founded the theory of algebraic invariants, algebraic-equation coefficients that are unaltered when the coordinate axes are translated or rotated. Beginning in 1833, he studied at St John's College, Cambridge. However, at this time signing a religious oath to the Church of England was required to graduate. Being Jewish, he refused and so he did not graduate. He taught physics at the University of London (1838-41), one of the few places which did not bar him because of his religion. Sylvester did important work on matrix theory, in particular, to study higher dimensional geometry. In 1851 he discovered the discriminant of a cubic equation. Earlier in his life, he tutored Florence Nightingale. |
Find the right combination
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Calculate the number 1405
NUMBERMANIA: Calculate the number 1405 using numbers [5, 9, 8, 5, 38, 429] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If bb1c8 + 3b2c1 = 11aa8c find number abc. Multiple solutions may exist.
Which is a winning combination of digits?
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Calculate the number 951
NUMBERMANIA: Calculate the number 951 using numbers [2, 2, 1, 7, 20, 978] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (12, 14, 17, 19, 23, 28, 56, 58, 67, 68, 76) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C.