Find the missing number in the sequence below:

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What do you see in the image below

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

what's the probability of getting a king or a queen from a pack of 52 cards?