What does this rebus means ?

PROG WORKRESS

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

What can you hold in your right hand, but never in your left hand?

Bay of Bengal is in which state?

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