Move four matchsticks to the below square to form three squares?

During which month do people sleep the least?

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?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

How can you make number one disappear by adding something to it?

Solve below rebus puzzle?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I have eight fingers and two thumbs but I do not live. What Am I?

Eight of us go fourth, not back, to protect our king from an attack. What are we?