1AA. wouldn’t steal a car
2AB. simple conveyor belt
3AC. dropped banknote
4AD. zero to hundred
5AE. bathing
6AF. comparison of the calorific value
7AG. conveyor belt travelling problem
8AH. crossed mirrors
9BA. antimatterianism
10BB. interplanetary pendulum
11BC. charged balls
12BD. the new dimension
13BE. repulsive cube
14BF. bubble bath for Janap
15BG. mercury column
16BH. sunken
17CA. walk on a boat à la Dan
18CB. perpetuum mobile of the second kind
19CC. asteroids
20CD. a complex network
21CE. small data
22CF. hard-working heart
23CG. I’m just all right
24CH. lighthouse
25DA. Bernoulli in real life
26DB. thunderstorm
27DC. football problem
28DD. lens and mirror
29DE. cleaning glasses
30DF. four body problem
31DG. Why is it smoking?
32DH. solar sniper
33EA. those resistors again
34EB. typical problem of a commuter
35EC. merry-go-flat
36ED. finally a pleasant temperature
37EE. repulsive
38EF. hang up that pendulum!
39EG. triangular network
40EH. zero to hundred for the third time
41FA. stretched
42FB. procrastination
43FC. a lot of computations
44FD. roof and cylinder
45FE. zero to hundred for the second time
46FF. a ring
47FG. Matěj’s four spheres
48FH. spinning container
49GA. rope
50GB. solar rod
51GC. fireworks