I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Using Only Five 5's and any mathematical operator make sum as 37

How can you leave a room with two legs and return with six legs?

During which month do people sleep the least?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

I am white when I am dirty, and black when I am clean. What am I?

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?

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

What seven-letter word has hundreds of letters in it?