What does the below rebus riddle means?

What Time Should the last watch show in the below figure?

What type of tree can I carry in my hand?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Can you divide the below-given shape into four equal and identical pieces?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Why is 6 afraid of 7?