1．Peter's Uncle 1
2．An Old Gentleman with an Umbrella 2
3．The Ugly Hat 4
4．"Eat,Coat!" 5
5．Cleaning Snow 7
6．An Old Lion and a Young Lion 8
7．Buying a Mouse-trap 10
8．Half Mad 11
9．Nasreddin and Two Thieves 12
10．Mr Black and His Wife 13
11．The Head and Tail 15
12．The Wisdom of a Poor Man 17
13．A Traveller's Tale 21
14．A Narrow Escape 23
15．A Clever Girl 30
16．The Magic Ointment 33
17．Tom's Composition 37
18．A Little Bit of Sunlight 44
19．Why Is the Sky Blue? 46
20．How to Hide in Your Clothes 48
21．Clue 50
22．Who Do I Get Chapped Skin? 52
23．The Ant 54
24．Building a House 57
25．Weather Forecasting 60
26．Uses of Mirrors 64
27．Moving Water Can Do Work 65
28．How Animals Are Put into Groups 67
29．What Is Electricity? 69
30．Types of Plants 71
31．Uses of Magnets 73
32．Heat and Burning 76
33．Return to Earth 79
34．The Ear 82
35．Life in the Soil 87
36．The Case of the Observant Jeweller 91
37．Madame Curie's Life in Poland 105
38．The Case of the Murderer's Hat 120
39．It Happened near a Lake 144