## Counting Pets

January 13, 2020 Leave a comment

Gerry has several pets at home.

All of them are dogs, except for three.

All of them are cats, except for four.

All of them are tortoises, except for five.

How many dogs does he have?

Math and Logic Puzzles

January 13, 2020 Leave a comment

Gerry has several pets at home.

All of them are dogs, except for three.

All of them are cats, except for four.

All of them are tortoises, except for five.

How many dogs does he have?

June 4, 2017 Leave a comment

“Love is like **π** – natural, irrational, and very important.” – Lisa Hoffman

Certain scientists think that love is a chemical state of mind and the formula for love is as follows:

dopamine + seratonin + oxytocin

C_{8}H_{11}NO_{2} + C_{10}H_{12}N_{2}O + C_{43}H_{66}N_{12}O_{12}S_{2}

How many atoms are there in the formula of love?

April 6, 2015 Leave a comment

What is wrong with cutting a cake? We always do it in a wrong way. What is better way? Alex Bellos gives the answer.

October 4, 2014 Leave a comment

Multiply the number of legs by the number of tails and subtract the number of heads.

Attention: Each knight still has a head and no tails.

It is a joke, however there are so many meaningless tasks that math books and teachers give students.

June 6, 2014 Leave a comment

A+Click contributor Gerry Geek just published a new true story:

A group of friends visit me. They eat and drink everything, even the cat’s food, and then leave. The fridge is empty – only a glass of milk is left. I give half of the milk to my cat Ben. He drinks half of it and then I drink half of what is left. Again, he drinks half of what is left and then I do the same. We continue until nothing is left. What proportion of the initial amount of milk did I drink in total?

I remember the moment when I saw Jane for the first time. We were sitting at the same table at a tea room along with Mary and John. We looked at each other and I was sure that everybody immediately chooses another. If two boys and two girls choose a partner, then what is the probability that everybody chooses the person who chooses them?

Before I met Jane I had a relationship with three girls who lived in the same house. I sent three letters to them. If the postman put the letters into three different boxes without looking at the name of the recipient, what would be the probability that all girls received their letters?

May 1, 2014 Leave a comment

Math can be really practical and useful!

For students.

For lock breakers.

For car racers.

For pool managers.

For family folks.

February 1, 2014 Leave a comment

Math is fun. Ten sample problems prove that math and logic can be interesting. It provides a link to collection of challenging math and logic puzzles.

Can be Math Funny? Try to solve 10 problems from A+Click.