Easy tasks to warm up the brain

Recently I had to look for interesting tasks for one event, so I want to share the most interesting of them.

• There is a sequence: P; AT; WITH; ? P; WITH; B. Find the missing letter.
• Task for children: Calf - 2; donkey - 2; duckling - 3; kitten - 3; puppy - 3. What is the number of the cock?
• There are matches: 122 - 0; 160-2; 384-2; 135 - 0; 608 - 4. What does 209 correspond to?
  
• How many times a day do the hands on the clock form an angle of 25 degrees?

PS For some, they will be known for a long time.
PSS Answers write white plz