What is the next number in this matchsticks series riddle?

What word is pronounced the same if you take away four of its five letters?

People put me on the table and cut me but do not eat me. What am I?

You can see three almost identical images below. Can you spot the odd one out from them?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

When 99 is considered higher than 100?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?