A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Can you find the thief by just looking at the picture below?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

How many triangles can you find in this given picture?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

What kind of band never plays music?