Question

Wich word is different?
21. top bottom half side
22. circle triangle picture square
23. soccer ping pong wrestling baseball
24. story fairy tale novel saying
25. horse lightning sguirrel cheetah
26. best fastest very old worst
27. bird cat rocket airplane
28. behind though across through
29. Dutch Notvegian Danish Holland
30. Pole Spaniard Dane Spanish

Answer 1

21 half
22 picture
23 wrestling
24 saying 
25 lightning 
26 very old
27 cat
28 behind
29 holland
30 pole