A father's child, a mother's child, yet no one's son.

Who am I?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Look at the picture and find out which square is not linked with any of the other squares.

Can you solve the equation by finding the value of
A) Horse
B) Cowboy boot
C) Horseshoe

In the Picture?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?