Who can jump higher than a Mountain?

What does this rebus mean?

O
N
C
E
TIME

Can you find a five letter word that is left with only two letters if one is removed?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

I know a nine-letter word having only one vowel.
Do you ?

Using Only Five 5's and any mathematical operator make sum as 37

Find the missing letter in the last circle logically in the given below picture.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10