A man dies of old age on his 25 birthday. How is this possible?

How many triangles are there on the puzzle below?

The Little ant seems to be always confused. Do you know why?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

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?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There is something which you can be arrested for attempting but not for successfully completing.

What is the end of everything?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?