I cannot talk, but I always reply when spoken to. What am I?

Can you count the number of squares in the figure below?

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?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?