In which direction should the missing arrow point?

If two's company, and three's a crowd, then whats four and five ?

What does below chemistry rebus means?

What does this rebus puzzle means ?

Give it food and it will live; give it water and it will die.

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?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?