A baby wants to take the milk bottle on the 8th stair. Each stair takes him 1 second to climb up and 1 second to climb down. He climbs up 3 stairs and down 1 stair, repeating until he gets the milk bottle. How long does it take in total?
Picture labels: GO means start; FINISH means the end.
Lexie has 26 dollars. She wants to buy 3 apples and some pears. An apple costs 5 dollars and a pear costs 2 dollars. At most how many pears can Lexie buy?
A Rubik’s cube is made of 64 little equal-sized cubes. Each face is painted a different colour. How many little cubes are covered by neither green nor red?
Five couples, consisting of 5 men and 5 women, joined a running race. Each person’s result is shown below. The judge gave a prize to the couple with the least total running time. Which couple received the prize?
Andrew has 26 balloons. He gives them all to his five friends Addison, Burke, Callie, Erica and George. Each friend must receive a different number, and each gets at least 3 balloons. What is the greatest number Erica can receive?
The four logs have the lengths shown below. Uncle John wants to cut them so that all four have the same length. What is the least total length, in centimetres, that he needs to cut off?
Teddy has four boxes of candies containing 6, 6, 9 and 10 candies. Each time, he chooses three boxes and eats one candy from each. He stops when he can no longer do this. What is the least number of candies left?
The picture shows a March calendar. Four siblings Andy, Billy, Cindy and Dolly share housework. Housework is done every day in March except Saturdays and Sundays. Andy does housework on odd-numbered dates only. Billy does housework on all Thursdays and Mondays. Cindy does housework every day in the second week. Dolly wants to do housework alone. On how many days in March does Dolly do housework?
Editorial question note: follow the source’s intended complete schedule. The listed rules assign all the stated days to Andy, Billy and Cindy, subject to the weekend exception for everyone. Dolly takes the remaining weekdays alone.