Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What is always in front of you but can’t be seen?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

10+10 and 11+11 can give you the same answer.

Explain how?

With the help clues provided in the image, can you find the 5 digit key?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you start the fire using two pieces of wood?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What time is it when an elephant sits on a fence?