Look carefully at the picture below and identify which glass will be filled first?
Note: You need to answer this riddle in less than 20 seconds.
S
O
L
U
T
I
O
N
:
No glass will ever fill.
Explanation:
Outlet to Glass-1 & 5 is blocked at the initial point, so they won’t fill.
Outlet to Glass-2 is blocked at the endpoint, so it won’t fill.
Outlet to Glass-3, 4 & 7 is also blocked in the middle, so they won’t fill.
Nothing is connected to Glass-6.