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

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

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

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

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

It is always ahead of me yet I can never see it. What is it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

There is something which you can be arrested for attempting but not for successfully completing.