Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

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?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Prove that the below maths equation is true.

8 + 8 = 91

Solve the counting riddle by identifying the number of triangles in the given picture.

Take one out and scratch my head, I am now black but once was red. What am I?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

O_er_t_o_

Complete the missing letters of the given word.

Can you make a six-letter word using the letters N, A and B ?

2, 3, 5, 9, 17, _ What is the next number in the sequence?