This visual counting puzzle asks a simple question: How many parrots are there? The challenge comes from the smaller parrots that are partly hidden behind larger birds….

This quick math puzzle looks simple, but it still catches people who ignore the order of operations. The expression is: 4 × 4 + 4 ÷ 4…

This puzzle is designed to make you add too quickly. The expression is: 15 + 15 × 0 + 5 According to the order of operations, multiplication…

This equation is a classic source of arguments because the notation can look more confusing than it really is. The expression is: 12 ÷ 3(1 + 3)…

This family puzzle takes a little algebra, but the wording gives you everything you need. Suppose there are b boys and s girls. For a boy, the…

This drawer puzzle depends on what we mean by a matching pair. The usual interpretation is that the 10 socks form 5 distinct pairs. In the worst…

This tiny equation is easy to underestimate because every number is the same. The expression is: 1 + 1 ÷ 1 + 1 Division must be completed…

This puzzle looks straightforward, but you still need to follow the correct order of operations. The expression is: 7 × 3 + 7 ÷ 7 Multiplication and…

This equation is a good test of one detail people often forget: multiplication and division have the same priority. The expression is: 18 − 6 ÷ 3…