1964
Do You Know?
Liam Devlin & Sons Ltd.
50 cards (1 football)
The first 25 cards are the same as the ones issued in a similar series that has been used by a number of companies. More information can be found here - Ching's Tea / Tonibell / Anonymous / Cromwell Stores / Ovaltine Biscuits / B.T. Tea / - Did You Know? / Do You Know?.
1. Why a horse-shoe is used for luck
2. Where women grow Giraffe-necks
3. A mushroom from a toadstool
4. How the flying-fish flies
5. A butterfly from a moth
6. Why a billiard cue is bevelled
7. How snow crystals are formed
8. How fast an ostrich travels
9. The most perfect building in the world
10. Why flowers are scented
11. How coral is formed
12. Why iron sinks
13. What a Juggernaut is
14. Why flags are flown at half-mast
15. The construction of a pyramid
16. A duck from a drake
17. How a bee makes honey
18. Why Toby Jugs are so named
19. What causes lightning
20. How a nettle stings
21. The history of the F.A. Cup
22. That some fish walk on land
23. How a grasshopper sings
24. How a Brazil nut grows
25. The art of water divining
26. Why coins have milled edges
27. About lighthouses
28. What is a volcano
29. What stocks were used for
30. About grapes
31. Magna Carta Island
32. The origins of May-Day
33. What is a trampoline
34. About fire
35. About precious stones
36. What is a mirage
37. About shells
38. What was the Gunpowder Plot
39. The origin of fox-hunting
40. Why the Tower of Pisa leans
41. About Buddhism
42. How laundry used to be done
43. What is an oriel window
44. What is the Great Seal
45. About jelly fish
46. Why some cars have "L" plates
47. How a tadpole becomes a frog
48. How pottery is made
49. Where coconuts come from
50. About minerals