What does the below rebus riddle means?

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?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What type of tree can I carry in my hand?

Who are the happiest people in IPL match?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Guess the hidden movie name?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?