What are the 2 keys that can't open a door?

Q: What two keys can't open any door? A: A donkey and a monkey.


What keys Cannot open locks?

The Answer is Piano.

What key can open every door?

A skeleton key has the warded section of the key removed so that it opens all the doors of a system. Some applications, such as a building with multiple entrance doors, have numerous locks that are keyed alike; one key will open every door.


Is there a key that unlocks every lock?

What is the key that opens all the doors? It's called 'Master Key', and can only be used in locks that are mastered. An apartment building may have 500 locks all keyed different, and one master that opens the locks in that particular building.

What is a 999 key?

Bump keys are specially cut keys that can bypass the security mechanisms built into traditional pin and tumbler locks. Bump keys are also referred to as “999 keys” because all of their ridges are cut to the maximum depth (999) in a key-making machine.


UPVC DOOR LOCK FAULT, Key Won’t Remove & it’s upside down How To Repair or Replace Locks (Simple)



Can a lock have 2 different keys?

Some locks are designed to work with two different keys. The change key will open only that specific lock, while the master key will open that lock and several others in a group. In these locks, a few of the pin pairs are separated by a third pin.

What are the different types of keys?

Types of Keys in DBMS
  • Primary Key.
  • Super Key.
  • Candidate Key.
  • Alternate Key.
  • Foreign Key.
  • Composite Key.
  • Unique Key.


What is a dead lock key?

A deadlock is a type of lock that can only be unlocked using a key when in deadlock mode. Standard deadlocks have keyholes on both sides, which means if you lock the door when you are inside, you will need the key to get out.


What two keys can never open a door but love to eat?

Q: What two keys can't open any door? A: A donkey and a monkey.

What is the hardest lock to open?

Granit locks have a tensile resistance of over six tonnes, making it almost impossible for attackers to release the shackle from the lock body by force.

What Colour can we eat?

Orange color can you eat.

Orange actually comes from the Old French word for the citrus fruit 'pomme d'orenge'. the fruit became orenge, and this was adopted into English, eventually becoming 'orange', to describe the fruit as well as the colour.


What is the two door riddle?

How to Solve the Labyrinth Two-Door Riddle. To solve the puzzle, you must ask one guard (it doesn't matter which one) which door the other guard would say leads out. Both guards will indicate the same door, which will be the door that doesn't lead out.

What has teeth but cannot eat?

What has teeth but cannot eat? Comb.

What are the 3 types of key operated lock?

Deadbolt locks come in three primary types: single, double and vertical. Single-cylinder deadbolts are the simplest and can be activated from one side via a key. Double-cylinder deadbolts can be used with a key from both sides.


What are the different types of lock keys?

10 different types of keys:
  • Skeleton Key: Skeleton keys have a sleek cylindrical shaft with a set of teeth at the end. ...
  • Double-Sided & Four-Sided Key: These keys are most commonly used for home locks. ...
  • Transponder Key: ...
  • Dimple Key: ...
  • Tubular Key: ...
  • Padlock Key: ...
  • VAT Key: ...
  • Magnetic Key:


What are the types of dead lock?

Two types of deadlocks can be considered:
  • Resource Deadlock. Occurs when processes are trying to get exclusive access to devices, files, locks, servers, or other resources. ...
  • Communication Deadlock.


What are the two kinds of keys?

Common types of keys include:
  • Double-Sided & Four-Sided Key - These types of keys have either two or four sets of teeth on them and are most commonly used for home locks. ...
  • Transponder Key - Difficult to duplicate, transponder keys have a small microchip that are programmed to start a particular vehicle.


What are two major types of keys?

The primary key is used to identify a specific row in a table. The unique key is used to ensure that there is only one entry in a specific table.

What is a universal key called?

The universal key or universal scale is a concept employed in music theory in which specific notes or chord symbols in a key signature are replaced with numbers or Roman numerals, allowing for a discussion describing relationships between notes or chords that can be universally applied to all key signatures.

How do you tell if a key is a master key?

Any key that operates two or more unique locks can be called a master key. A master key will look like any other key within a master key system. It will be the same size and same basic shape. Only the cuts will differentiate it, unless it is stamped with identifying alphanumeric characters, like “GGM” or “GM” or “A”.


What does a two key mean?

Certain locks require two or more people to unlock them simultaneously. The idea is that even if someone malicious got hold of one key, they'd still need to get hold of the second key.

Do universal keys exist?

The Postal Service uses a universal key, known as an arrow key, to access collection boxes, outdoor parcel lockers, cluster box units, and apartment panels. Supervisors assign these keys – generally one per route – to letter carriers for use on over 300,000 delivery and collection routes each day.

What can run but can't walk?

talks, has a head but never weeps, has a bed but. never sleeps? Answer: A River!


What is at the end of Rainbow?

What is at the end of the rainbow? At the end of the rainbow is a pot of gold.

What has a face but Cannot smile?

Riddle: What has hands and a face, but can't hold anything or smile? Answer: A clock. 3.
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