What does this rebus means ?

PROG WORKRESS

What is so fragile that saying its name breaks it?

Identify the 10 differences between the two given pictures.

My location can be determined by the below rebus.
So where am i ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Can you replace the question mark with the correct number in the below table sequence?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?