What you cannot hold but it is yours?

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?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Take one out and scratch my head, I am now black but once was red. What am I?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

The centre of the third figure is empty. What digit should fit inside?

What's the best place to go shopping in the ocean?

What has hands, but can’t clap?

Look at the picture and find out which square is not linked with any of the other squares.