Can you count the number of lines in the below picture?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Can you find out the total number of triangles in the given figure?

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

When we see 2 but call 10?

What time is it when an elephant sits on a fence?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

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?