Given some of the proper factors of a number, what could the number be?

Using information about how a scroboscopus squares its number of legs, can you tell how many scroboscopi Tom…

Investigate the pattern(s) involving the middle digit in the square of numbers whose digits are all 1’s.

Use what you know or what you can find out about common letters to help you decode this…

How many terms are in the given sequence?

Use the average of four 26’s and four 34’s to determine the average of four of another number.

When will Sonic the Hedgehog, the Road Runner, and the Tasmanian Devil meet if they are running on…

Find the next two letters in the given sequence.

What will the number machine give me if I put in 100?

Find numbers whose factors are all even (excluding the number 1 as a factor).