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

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

Which digit occurred maximum times between the number 1 and 1000?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

How many squares, of any size, can you find on this chessboard which do not contain a Rook?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

Which is the correct shadow of the bird?

When 99 is considered higher than 100?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

What breaks yet never falls, and what falls yet never breaks?

What jumps when it walks and sits when it stands?