Can you solve the below rebus?

Replace the question mark with the correct number below.

What word does this rebus represent?

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It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Find the smallest sentence with all the English alphabet.

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

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

It is Secret Agent Bond Girl Friend's birthday but he is on a secret mission

Mr Bond has a secret device by which he can only use the below words for sending the message.

Dumbo, Nazi, Carrot, Ronda, Zambia, Racing, TinTin, Seou, Zareeba, Laltain, Saphire, Tar, Orphan, Audition, Biscotti.

Mr Bond sends the following message to her girlfriend:
Carrot Dumbo Nazi Racing Ronda Zambia TinTin Seou Laltain Zareeba Tar Biscotti Orphan Audition Snake

What does Mr. Bond's Message say?

Count the number of lines in the image below ?