What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Find the missing letter in the last circle logically in the given below picture.

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Count the Triangle in the figure given below:

Solve the mathematical equation in the picture below.

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?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

What brings you down but never up?