How many triangles are there on the puzzle below?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

If six children and two dogs were under an umbrella, how come none of them got wet?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Can you count the number of triangles inside a triangle?

What has to be broken before you can use it?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?