What does below chemistry rebus means?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

Can you decipher the two rows to find the hidden word?

how come the second man dies?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

I have branches, but no fruit, trunk or leaves. What am I?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Can you count the number of blocks in the picture below?

If eleven plus two equals one, what does nine plus five equal?

I can be cracked, made, told, and played. What am I?