What is the longest word in the dictionary?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

Can you count the number of triangles in the given figure?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

What's a single-digit number with no value?

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?