Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What word does this rebus represent?

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Why is the Hole below a Lock?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

Why are all black people so quick ?

Replace the question mark with the correct number below.

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

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