a vacuum cleaner hose?
4 Seconds
small paper clip
A male Portugese water dog
13 is said to be about 0.46 as long as lenghth 6 meters.
I can think of no household item that is 1mm long. It would be very difficult to pick up and manipulate.
The answer has to be a broom or mop.
A yard stick is approximately a meter long (actually 0.9144 meters). Also, a baseball bat is usually one meter long.
A lock on a door knob.
..... If you have a household runway maybe
5 meters long= possiblily a bus, limosine.... Prussia's.
An ordinary door.
a yard stick
a book
1.8 meters. The ratio of object to shadow is 10:6. Therefore if the object is 3, the shadow is 1.8 ( 6/10x3).
Two meter sticks taped together LOL.
A small car.
Well a bookcase or chair would be a perfect answer