If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

I have feet, but no legs. Which animal Am I?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?