The centre of the third figure is empty. What digit should fit inside?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

What 5-letter word typed in all capital letters can be read the same upside down?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.