Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

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?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Make a sentence consisting of three words that have the whole alphabet.

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

When it is alive we sing, when it is dead we clap our hands. What is it?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

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

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?