What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

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 month of the year has 28 days?

Which tank will fill first?

When does a USA Potato change its nationality?

The more of this there is, the less you see. What is it?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

Which is the rope you never skip with?

What type of tree can I carry in my hand?