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?

Identify the 10 differences between the two given pictures.

81 x 9 = 801. What must you do to make the this equation true?

Name a key which is hardest to turn.

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?