Gap between F and J
There is a specially designed bump in between the keyboards on the alphabet F and J which enables people to type without looking at it and thereby enhancing the typing speed.

Why the loop?
This multipurpose loop helps to hang the shirt without any fuss.
While we wondered why do they have the loop on it

Why do the shoes have 2 holes?
It isn't a design faux that your shoes has two holes. It is there for a purpose.
The first hole is present so that air could pass through it and whenever a person is not wearing socks it helps their feet to avoid suffocation.
The second reason is this hole which allows your shoes to be tighter around your feet.

Chopsticks and their purpose
The square knob at one end of the chopsticks indicate that these are yet to be unused.

Laptop charging cord
It has a important role to play while charging your laptop as the small parts inside a laptop run because of radio frequencies.
The charging cable acts as an antenna and picks up signals which create interference.

Gap between the cap
Conventional wisdom says that the gap between the pen cap is for air passing through it but it is said that if a child swallows the cap then this gap lowers any harm that causes suffocation as it helps to pass the air.

Small packets
It is popularly called as the secret packet. One can keep their money here far from prying eyes.

Small packets
It is popularly called as the secret packet. One can keep their money here far from prying eyes.

Tiny hole on the phone
This tiny hole between the camera and the flashlight is a microphone that records ambient noise.
It reduces the ambient noise from the main microphone where we can hear a voice from the other side.

Headrest
There are some hidden features like this car headrest which can be used to rest one's head but it also has some other features like in case if you are drowning then you can take that metallic headrest to break the window.

Earphones
There is a tiny hole which enables a small amount of air to pass through it which ensures frequent transmission resulting in better sound quality.