|
1
1
|
1
|
1
|
You vs. Train
|
2016-01-30
2016-01-30
|
|
2
2
|
1
|
1
|
Protect the fortress
|
2024-06-01
2024-06-01
|
|
3
3
|
1
|
1
|
A-B
|
2023-11-26
2023-11-26
|
|
4
4
|
1
|
1
|
How big until COVID?
|
2022-08-31
2022-08-31
|
|
5
5
|
1
|
1
|
How many ways
|
2016-08-08
2016-08-08
|
|
6
6
|
1
|
1
|
Check the rule
|
2023-11-08
2023-11-08
|
|
7
7
|
1
|
1
|
Mowing the lawn
|
2023-11-08
2023-11-08
|
|
8
8
|
1
|
1
|
Bowling Ball
|
2016-01-30
2016-01-30
|
|
9
9
|
1
|
1
|
Code Lock
|
2023-11-18
2023-11-18
|
|
10
10
|
1
|
1
|
Infinite Gold
|
2024-05-25
2024-05-25
|
|
11
11
|
1
|
1
|
Logicians Numbers
|
2023-11-18
2023-11-18
|
|
12
12
|
1
|
1
|
riverboat
|
2025-02-23
2025-02-23
|
|
13
13
|
1
|
1
|
zig-zag
|
2025-07-06
2025-07-06
|
|
14
14
|
1
|
1
|
ABCD
|
2023-11-26
2023-11-26
|
|
15
15
|
2
|
1
|
Two Tails
|
2022-10-23
2022-10-23
|
|
16
16
|
2
|
1
|
Excited Dog
|
2016-01-30
2016-01-30
|
|
17
17
|
2
|
1
|
Red and Blue Marbles
|
2016-07-15
2016-07-15
|
|
18
18
|
2
|
1
|
Improving at Free Throws
|
2023-11-11
2023-11-11
|
|
19
19
|
2
|
1
|
Find the perimeter
|
2024-10-27
2024-10-27
|
|
20
20
|
2
|
1
|
How many people were in the room?
|
2023-11-15
2023-11-15
|
|
21
21
|
2
|
1
|
Cursed Temple
|
2016-02-28
2016-02-28
|
|
22
22
|
2
|
1
|
Three Dogs
|
2021-08-04
2021-08-04
|
|
23
23
|
2
|
1
|
Do I have the disease?
|
2022-08-31
2022-08-31
|
|
24
24
|
2
|
1
|
Crossing ladders
|
2016-01-17
2016-01-17
|
|
25
25
|
2
|
1
|
How Many Sons
|
2018-06-17
2018-06-17
|
|
26
26
|
3
|
1
|
Working Together
|
2020-11-18
2020-11-18
|
|
27
27
|
3
|
1
|
Three Geysers
|
2023-10-31
2023-10-31
|
|
28
28
|
3
|
1
|
25 horses
|
2021-03-18
2021-03-18
|
|
29
29
|
3
|
1
|
Stolen Rubies
|
2025-07-04
2025-07-04
|
|
30
30
|
3
|
1
|
Occupied!
|
2017-10-24
2017-10-24
|
|
31
31
|
3
|
1
|
John and Julia
|
2016-01-30
2016-01-30
|
|
32
32
|
3
|
1
|
How many ways level 2
|
2016-08-08
2016-08-08
|
|
33
33
|
3
|
1
|
Red Black Cards
|
2016-01-30
2016-01-30
|
|
34
34
|
3
|
1
|
How much do the bananas cost?
|
2020-12-27
2020-12-27
|
|
35
35
|
3
|
1
|
NBA Finals
|
2016-08-08
2016-08-08
|
|
36
36
|
3
|
1
|
How many squares
|
2020-08-28
2020-08-28
|
|
37
37
|
3
|
1
|
Number trees
|
2023-04-30
2023-04-30
|
|
38
38
|
3
|
1
|
Guess the Password
|
2016-07-15
2016-07-15
|
|
39
39
|
3
|
1
|
Two Egg Drop
|
2016-08-08
2016-08-08
|
|
40
40
|
3
|
1
|
Birthday Problem
|
2016-05-26
2016-05-26
|
|
41
41
|
3
|
0
|
Square Chords
|
2023-11-19
2023-11-19
|
|
42
42
|
3
|
1
|
How many songs can you make?
|
2022-05-19
2022-05-19
|
|
43
43
|
3
|
1
|
Four Fours
|
2024-08-24
2024-08-24
|
|
44
44
|
3
|
1
|
Pick a lower number
|
2021-06-20
2021-06-20
|
|
45
45
|
4
|
1
|
Traffic Jams
|
2016-02-06
2016-02-06
|
|
46
46
|
4
|
1
|
Falling Apples
|
2022-10-23
2022-10-23
|
|
47
47
|
4
|
1
|
Bloodthirsty Pirates
|
2016-01-31
2016-01-31
|
|
48
48
|
4
|
1
|
What's the next card
|
2023-11-26
2023-11-26
|
|
49
49
|
4
|
1
|
Survival of the species
|
2017-02-12
2017-02-12
|
|
50
50
|
4
|
0
|
Balls in an urn
|
2020-12-27
2020-12-27
|
|
51
51
|
4
|
1
|
Coin flipping
|
2016-01-30
2016-01-30
|
|
52
52
|
4
|
1
|
Minimum number of weights
|
2016-01-30
2016-01-30
|
|
53
53
|
4
|
1
|
Lockers
|
2016-01-30
2016-01-30
|
|
54
54
|
4
|
1
|
Hole in the Wall
|
2016-01-31
2016-01-31
|
|
55
55
|
4
|
1
|
All on
|
2021-06-04
2021-06-04
|
|
56
56
|
4
|
0
|
Power Tower
|
2020-05-19
2020-05-19
|
|
57
57
|
4
|
0
|
Hot Potato
|
2017-10-24
2017-10-24
|
|
58
58
|
4
|
1
|
Escape the Lake
|
2021-08-04
2021-08-04
|
|
59
59
|
4
|
1
|
Find the princess
|
2020-06-05
2020-06-05
|
|
60
60
|
4
|
1
|
Linear Prisoners
|
2016-04-30
2016-04-30
|
|
61
61
|
4
|
1
|
Unfair coin
|
2023-04-30
2023-04-30
|
|
62
62
|
4
|
1
|
A Deadly Cure
|
2016-01-30
2016-01-30
|
|
63
63
|
4
|
1
|
3 Heads and 5 Hats
|
2016-01-30
2016-01-30
|
|
64
64
|
4
|
1
|
Round in Circles
|
2020-06-01
2020-06-01
|
|
65
65
|
5
|
1
|
Two Mathematicians and a Coin
|
2018-05-24
2018-05-24
|
|
66
66
|
5
|
0
|
Open Face Poker
|
2020-06-01
2020-06-01
|
|
67
67
|
5
|
0
|
Cube Creature
|
2016-01-31
2016-01-31
|
|
68
68
|
5
|
1
|
Disappearing Fibonacci
|
2020-12-27
2020-12-27
|
|
69
69
|
5
|
0
|
Rock, Paper, Scissors, Double Scissors
|
2017-10-15
2017-10-15
|
|
70
70
|
5
|
1
|
Dongle's Difficult Dilemma
|
2024-05-25
2024-05-25
|
|
71
71
|
5
|
1
|
All Tails
|
2020-12-27
2020-12-27
|
|
72
72
|
5
|
1
|
Presidential Streaks
|
2017-01-14
2017-01-14
|
|
73
73
|
5
|
1
|
Linear prisoners... with more hats
|
2018-07-05
2018-07-05
|
|
74
74
|
5
|
1
|
All Mixed Up
|
2017-01-21
2017-01-21
|
|
75
75
|
5
|
1
|
All wrong
|
2016-02-06
2016-02-06
|
|
76
76
|
5
|
1
|
Elevator Buttons
|
2016-05-26
2016-05-26
|
|
77
77
|
5
|
0
|
A percent of pie
|
2024-11-16
2024-11-16
|
|
78
78
|
5
|
1
|
12 balls
|
2016-07-15
2016-07-15
|
|
79
79
|
5
|
1
|
Odd man out
|
2024-06-01
2024-06-01
|
|
80
80
|
5
|
1
|
d42
|
2021-06-17
2021-06-17
|
|
81
81
|
5
|
1
|
The Cliff
|
2016-01-30
2016-01-30
|
|
82
82
|
6
|
1
|
How many teams
|
2016-05-03
2016-05-03
|
|
83
83
|
6
|
0
|
Drunken Square
|
2016-01-31
2016-01-31
|
|
84
84
|
6
|
0
|
Prison with Levers
|
2017-10-26
2017-10-26
|
|
85
85
|
6
|
1
|
Neurotic Basketball Player
|
2016-01-17
2016-01-17
|
|
86
86
|
6
|
1
|
Truel
|
2016-01-31
2016-01-31
|
|
87
87
|
6
|
0
|
Colorful Dwarves
|
2016-01-31
2016-01-31
|
|
88
88
|
6
|
0
|
Highest Card
|
2017-06-13
2017-06-13
|
|
89
89
|
6
|
1
|
13 Bridges
|
2022-08-31
2022-08-31
|
|
90
90
|
6
|
1
|
Five Card Magic Trick
|
2017-01-08
2017-01-08
|
|
91
91
|
6
|
1
|
Reverse Birthday Problem
|
2016-05-26
2016-05-26
|
|
92
92
|
6
|
1
|
Evenly divide the heads
|
2020-12-27
2020-12-27
|
|
93
93
|
7
|
1
|
abracadabra
|
2016-01-30
2016-01-30
|
|
94
94
|
7
|
1
|
How many squares, generalized
|
2020-08-28
2020-08-28
|
|
95
95
|
8
|
1
|
Moser's circle problem
|
2018-05-24
2018-05-24
|
|
96
96
|
8
|
1
|
Circular Prisoners
|
2016-07-18
2016-07-18
|
|
97
97
|
8
|
1
|
N-dimensional Tic-Tac-Toe
|
2016-01-30
2016-01-30
|
|
98
98
|
8
|
1
|
Higher or Lower
|
2016-02-06
2016-02-06
|
|
99
99
|
8
|
1
|
64 quarters
|
2016-01-30
2016-01-30
|
|
100
100
|
8
|
1
|
Coins on a table
|
2024-12-01
2024-12-01
|
|
101
101
|
9
|
1
|
Coin Towers
|
2020-06-01
2020-06-01
|
|
102
102
|
9
|
1
|
100 prisoners
|
2016-01-30
2016-01-30
|
|
103
103
|
9
|
1
|
Two envelopes problem revisited
|
2016-01-30
2016-01-30
|
|
104
104
|
10
|
0
|
Guess the Answers
|
2016-05-03
2016-05-03
|