How is a fly different from a mosquito?

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

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

What can jump higher than a building?

Why is a river so rich ?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

I travel all around the world but always stay in the corner. What am I?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I can write cow in 13 letters.

Can You?

who is silent in the parliament?