Which number should replace the question mark?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Count the number of squares in the picture below.

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

What does this rebus mean?

O
N
C
E
TIME

How is a fly different from a mosquito?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?