I AM A 8LETTER WORD WITHOUT THE FIRST FOUR LETTER I COULD NOT BE AVAILABLE WITHOUT THE LAST FOUR WORDS EVERYONE COULD BE ILLITERATE PEOPLE USE ME EVERY TIME AM MR FAMOUS WHA RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Right between the eyes. Did you answer this riddle correctly?
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Let us denote the four people with A, B, C and D.
A takes 1 minute to cross, B takes 2, C takes 5 and D takes 10.

A and B cross first spending 2 minutes.
A comes back with torch taking 1 minute.
C and D cross taking 10 minutes.
B comes back with torch taking 2 minutes.
Finally, A and B cross the bridge taking 2 minutes.

2 + 1 + 10 + 2 + 2 = 17 minutes

Thus, this is the way they all managed to cross that bridge that night. Did you answer this riddle correctly?
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Pablo Pig-caso and Vincent van Goat! Did you answer this riddle correctly?
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Blackbeard Did you answer this riddle correctly?
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I am a door Did you answer this riddle correctly?
YES  NO  

Frog Did you answer this riddle correctly?
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Three Musketeers Bar Did you answer this riddle correctly?
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Baby Ruth Did you answer this riddle correctly?
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Queue. Did you answer this riddle correctly?
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Sherlock Bones. Did you answer this riddle correctly?
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Stairs! Did you answer this riddle correctly?
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Begins

It has six letters, when a meditation begins they sound the gong, and the letters are in alphabetical order. Did you answer this riddle correctly?
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A towel Did you answer this riddle correctly?
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Pi (number of letters in each word of the riddle)
3,1 4 1 5 9
2 6 5 3 5 8
9 7 9
3 2 3 8 4 6
Did you answer this riddle correctly?
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Patience Did you answer this riddle correctly?
YES  NO