Find the next number in the sequence

5 12 24 36 ?

In which direction should the missing arrow point?

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

Can you find the six hidden animals in the picture below?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

Can you count the number of squares in the figure below?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

How do you go from 98 to 720 using just one letter?