Riddles
Go to...
Index
Translations
Pronunciation
Images
Computers
Geography
Languages
0 / 60 seg.
Why is a manhole round? Why is it better to have round manhole covers compared to square manhole covers?
A
S
Q
_
_
R
_
M
_
N
H
_
L
_
C
_
V
_
R
C
_
N
F
_
L
L
_
N
T
_
T
H
_
M
_
N
H
_
L
_
_
S
T
H
_
D
_
_
G
_
N
_
L
L
_
N
G
T
H
_
F
_
S
Q
_
_
R
_
M
_
N
H
_
L
_
_
S
G
R
_
_
T
_
R
T
H
_
N
T
H
_
S
_
D
_
S
.
A
R
_
_
N
D
M
_
N
H
_
L
_
C
_
V
_
R
C
_
N
N
_
V
_
R
F
_
L
L
_
N
T
_
T
H
_
M
_
N
H
_
L
_
Clue
A SQUARE MANHOLE COVER CAN FALL INTO THE MANHOLE AS THE DIAGONAL LENGTH OF A SQUARE MANHOLE IS GREATER THAN THE SIDES. A ROUND MANHOLE COVER CAN NEVER FALL INTO THE MANHOLE
YOU WILL NEED A MAXIMUM OF 7 ATTEMPTS TO FIND 2 WORKING BATTERIES. BREAK THE BATTERIES INTO 3 GROUPS: TWO GROUPS OF 3 AND ONE GROUP OF 2. BY DOING THIS YOU GUARANTEE THAT AT LEAST ONE OF THE GROUPS HAS 2 WORKING BATTERIES. BOTH OF THE GROUPS OF 3 HAVE 3 POSSIBLE COMBINATIONS OF 2 BATTERIES AND THE GROUP OF 2 ONLY HAS 1 COMBINATION. SO, 3 + 3 + 1 = 7 TRIES AT MOST TO FIND TWO WORKING BATTERIES
9 TEENAGERS CAN EAT 18 PIZZAS IN 3 DAYS. 1 TEENAGER CAN EAT 1 PIZZA IN 1.5 DAYS. 1 TEENAGER CAN EAT 2 PIZZAS IN 3 DAYS. 9 TEENAGERS CAN EAT 18 PIZZAS IN 3 DAYS
THEY ARE EITHER: 2 OF SPADES, 5 OF SPADES AND 2 OF CLUB; OR 5 OF SPADES, 2 OF SPADES AND 5 OF CLUB
Text
Audio
Text & audio
Free text
Multiple option
Previous question
Start
Next question
Please enable JavaScript to continue using this application.