What does this rebus means ?

PROG WORKRESS

I am the fastest animal but cannot climb the tree. What am I?

What happened when the wheel was invented?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

The Little ant seems to be always confused. Do you know why?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

When 99 is considered higher than 100?

Which is heavier: a ton of bricks or a ton of feathers?

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

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H