When will Uncle be four times as old as cousin?

Count all squares in a 3x3 checkerboard. The small ones are 9, but there are bigger ones too. How many total?

easy · age 6+

When does the fast train catch the slow one?

easy · age 6+

How far is the crow-fly distance?

easy · age 6+

What number do eight 8s make?

easy · age 6+