I am an odd number. Take away a letter and I become even. What number am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Decode below rebus
D
N
A
T
S , D

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

What does this say?

XLR8

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

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