No one wants to have it, but if one got it, he does not want to lose it. What is It?

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?

How can you take 2 from 5 and leave 4?

Can you count the number of triangles in the given picture?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What has 13 hearts but no other organs?