Self-Power Squares
How many integers $n$, between $1$ and $100$ inclusive, have the property that $n^n$ is a square number?
How many integers $n$, between $1$ and $100$ inclusive, have the property that $n^n$ is a square number?
There are six more girls than boys in Miss Spelling's class of 24 pupils. What is the ratio of girls to boys in the class?
A small ink cartridge has enough ink to print 600 pages. How many pages can be printed using a large ink cartridge?
Given the ratios of junior to senior and senior to veteran members, can you work out what the smallest possible number of members in a swimming club is?
Maria and Lucy spun a coin 30 times, and gave each other sweets depending on the outcome of the spin. How many times was tails spun?
If $a \times b=2$, $b \times c=24$, $c \times a=3$ and $a$, $b$ and $c$ are positive, what is the value of $a+b+c$?
In a supermarket, there are two lines of tightly packed trolleys. What is the length of one trolley?
Weekly Problem 16 - 2007
Can you figure out how far the robot has travelled by the time it is first facing due East?
A cube is rolled on a plane, landing on the squares in the order shown. Which two positions had the same face of the cube touching the surface?
In the diagram, the small squares are all the same size. What fraction of the large square is shaded?