Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

You need to remove two matchsticks to make the below equation true. Can you do it ?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

Count the number of squares in the picture below.

Can you identify the hidden rebus in the image below?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Can you spot the man between the coffee bean in the picture below ?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?