What is next number in the pattern below:

131 517 192 123 ?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Can you count the number of triangles in the given picture?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?