What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

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?

You can see it everyday, But cannot touch it at will. What is it?

What does the below rebus puzzle mean?

What is harder to catch the faster you run?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

In the image below, can you find the value of an angle(y)

If your uncle’s sister is not your aunt, what relation is she to you?

I have an eye but still cannot see.

Who am I?

The answer I give is yes, but what I mean is no. What was the question?