When we see 2 but call 10?

Which number should replace the question mark?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

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

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.