Meet your next aha! moment.
A pinch of logic, a twist of words, a little number magic. Hints are always welcome.
15 little discoveries
The mixed-up snack jars
Three jars contain only almonds, only raisins, or a mixture. Their labels read Almonds, Raisins, and Mixed — and every label is wrong. From which jar should you take one snack to identify all three?
Give it a go Numbers02A staircase of numbers
Siya writes 1 on the first step, 2 on the second, and so on to 10. What is the total of all ten numbers?
Give it a go Wordplay03The silent guide
I can show you a river without getting wet, and a road without taking a step. Fold me up and take me along. What am I?
Give it a go Logic04Who brought the kite?
Asha, Ben, and Chen each brought one different item: a ball, a kite, or a book. Asha brought neither the ball nor the book. Ben did not bring the book. Who brought each item?
Give it a go Numbers05The growing garden
A pattern of flower counts goes 2, 5, 11, 23. Using the rule “double the previous number, then add one,” what comes next?
Give it a go Wordplay06A window made of paper
I have a cover but am not a bed. I have a spine but no bones. Open me and a story begins. What am I?
Give it a go Logic07The picnic queue
Four friends stand in a line. Dev is immediately behind Asha. Ben is first. Chen is not last. What is the order from first to last?
Give it a go Numbers08The pocket collection
You have eight coins worth either 1 or 2 points each. Their total value is 13 points. How many 2-point coins do you have?
Give it a go Wordplay09The evening companion
I follow your feet on a sunny walk, stretch when the Sun gets low, and disappear in complete darkness. What am I?
Give it a go Logic10The honest signs
A prize is in either a red box or a blue box. The red sign says “The prize is here.” The blue sign says “The prize is in the red box.” If both signs are false, where is the prize?
Give it a go Numbers11A little clock hop
A clock shows 9:40. What time will it show 95 minutes later?
Give it a go Wordplay12A shorter word
Which five-letter word becomes “shorter” when you add two letters to its end?
Give it a go Logic13The mystery marble bag
A bag contains red, yellow, and blue marbles, with at least four of each. Without looking, how many must you take to guarantee two of the same color?
Give it a go Numbers14Fence the tiny garden
A rectangular garden is 7 meters long and 4 meters wide. How much fencing is needed to surround it, with no gap?
Give it a go Wordplay15Always one day away
You can plan for me tonight, but when I arrive you call me today. What am I?
Give it a go