What does this Rebus Picture mean?

How is a fly different from a mosquito?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

what one word does the below rebus identifies?

Whats the next number in the below number sequence pattern.

Solve the mathematical equation in the picture below.

Be active and find the killer in the picture Riddle below.

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?