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?

Solve the following series:
AZ, GT, MN, __, YB

How many letters are in the alphabet?

Can you solve the below rebus?

A bomb exploded in a room full of married couples and no one died. How?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

What does this rebus means ?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Which five letter word can be added at the end of below word to form a
valid word?

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If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?