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

Can you make a six-letter word using the letters N, A and B ?

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?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

My location can be determined by the below rebus.
So where am i ?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

What work can one never finish?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?