What month of the year has 28 days?

When can we add 2 to 11 and get 1 as the correct answer?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

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?

Can you count the number of lines in the below picture?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Can you place six X (crosses) in below board without making three in a row in any way ?