What does this rebus means ?

PROG WORKRESS

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

What makes this number unique: 8,549,176,320?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

My location can be determined by the below rebus.
So where am i ?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

How many Watermelons are there in the below picture?

Prove that the below maths equation is true.

8 + 8 = 91

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?