Imagine a digital clock like the one shown below. How many times will the clock display three or more of the same number in a row over the course of one day? The clock in this puzzle displays time on a 12-hour scale.

You know 2 + 2 comes to the same as 2 x 2. Now find a set of three different whole numbers whose sum is equal to their total when multiplied.

What single digit appears most frequently between and including the numbers 1 and 1,000?

If a hen and a half lay an egg and a half in a day and a half, how many eggs will half a dozen hens lay in half a dozen days?

I add six to eleven, and get five. Why is this correct?

Old Granny Adams left half her money to her granddaughter and half that amount to her grandson. She left a sixth to her brother, and the remainder, $1,000, to the dogs’ home. How much did she leave altogether?

My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house numbers?

What is the smallest whole number that is equal to seven times the sum of its digits?

What is the smallest number that increases by 12 when it is flipped and turned upside down?

A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?