What's the best place to go shopping in the ocean?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

why number 8549176320 is one of a kind?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What does a man do only once in his lifetime, but women do once a year after they are 29?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?