Why is 6 afraid of 7?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Count the number of triangles in the picture below: