Can you identify if it's a murder or a suicide ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Which is faster, Heat or Cold ? Explain.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

If an electric train is travelling south, then which way is the smoke going?

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?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Count the number of triangles in the picture below:

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?